Cap unit and container with cap

Abstract

To provide a cap unit that prevents a hinge part or a lid body from getting in the way in a state where a liquid passage port is open.SOLUTION: A cap unit 1A is detachably attached to a container main body 2 whose upper portion is open. The cap unit 1A includes: a cap main body 7 which blocks an upper opening of the container main body 2 and in which a liquid passage port communicating with the inner side of the container main body 2 is provided in an upper portion; and a lid body 9 which opens / closes the liquid passage port in a state that the lid body 9 is rotatably attached to the cap main body 7 via a hinge part 8. The cap main body 7 has: a peripheral wall portion 7a that is formed in a substantially cylindrical shape and covers the outer periphery side; and an upper wall portion 7b that covers an upper portion of the peripheral wall portion 7a. A center of a hinge shaft 8a in the hinge part 8 is located lower than the highest position of the upper wall portion 7b.SELECTED DRAWING: Figure 1

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 capped containers that include a cap unit that can be detachably attached to a container body that is open at the top (see, for example, Patent Document 1 below).

[0003] The cap unit includes a cap body that closes the upper opening of the container body and has a liquid passage at the top that communicates with the inside of the container body, and a lid body that is rotatably attached to the cap body via a hinge portion and opens and closes the liquid passage.

[0004] The cap unit also includes a lid locking mechanism that fixes the lid, which is biased in a direction to open the liquid passage hole by a biasing member provided on the hinge portion, to the cap body in a position to close the liquid passage hole.

[0005] In a capped container equipped with such a cap unit, when the lid lock mechanism is released from the lid, the lid rotates due to the bias of the biasing member, and the liquid passage hole is opened. This makes it possible to drink the beverage in the container body that flows out from the liquid passage hole by tilting the container body. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2023-22743 A Summary of the Invention [Problem to be solved by the invention]

[0007] However, in a capped container equipped with the conventional cap unit described above, when drinking the beverage inside the container body that flows out through the liquid passage while tilting the container body, the hinge portion or the lid body can hit the nose and get in the way.

[0008] The present invention has been proposed in consideration of the above-mentioned conventional circumstances, and aims to provide a cap unit that prevents the hinge portion and lid body from getting in the way when the liquid passage port is open, and a capped container that is equipped with such a cap unit, thereby enabling further improvement in usability. [Means for solving the problem]

[0009] 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 at an upper portion thereof that communicates with the inside of the container body; a lid body that is rotatably attached to the cap body via a hinge portion and opens and closes the liquid passage port, The cap body is formed in a substantially cylindrical shape and has a peripheral wall portion covering an outer periphery side and an upper wall portion covering an upper portion of the peripheral wall portion, A cap unit, characterized in that a center of a hinge axis of the hinge portion is located below a highest point of the upper wall portion. [2] The cap unit described in [1], characterized in that when the cap body is attached to the container body, the center of the hinge axis of the hinge portion is located below the upper opening of the container body. [3] The cap unit according to [1], wherein the center of the hinge axis of the hinge portion is located outside the outermost diameter portion of the peripheral wall portion. [4] The cap body has a contact portion, The cap unit described in [1] above, wherein the lid body has an abutment portion that abuts against the abutted portion from the rear side when the lid body is displaced forward. [5] The cap unit according to any one of [1] to [4] above; A capped container comprising: a container body to which the cap unit is attached. Effect of the Invention

[0010] As described above, according to the present invention, there is provided a cap unit that prevents the hinge portion and lid body from getting in the way when the liquid passage port is open, and a capped container that is equipped with such a cap unit, thereby making it possible to further improve usability. [Brief description of the drawings]

[0011] [Figure 1] FIG. 1 is a cross-sectional view showing the configuration of a capped container equipped with a cap unit according to a first embodiment of the present invention, with the lid body in a closed position. [Diagram 2] 2 is a side view showing the configuration of a capped container equipped with the cap unit shown in FIG. 1, with the lid body in an open position. [Diagram 3] 2 is a perspective view showing the configuration of a capped container equipped with the cap unit shown in FIG. 1, with the lid body in an open position. [Figure 4] 2 is a cross-sectional view taken along a plane different from that of FIG. 1, illustrating the configuration of the cap unit illustrated in FIG. 1, with a lid body in a closed position. [Diagram 5] FIG. 11 is a cross-sectional view showing the configuration of a capped container equipped with a cap unit according to a second embodiment of the present invention, with the lid body in the closed position. [Figure 6] 6 is a side view showing the configuration of a capped container equipped with the cap unit shown in FIG. 5, with the lid body in an open position. [Figure 7] 6 is a cross-sectional view taken along a plane different from that of FIG. 5, illustrating the configuration of the cap unit shown in FIG. 5, with the lid body in a closed position. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. (First embodiment) First, as a first embodiment of the present invention, a capped container 100 including a cap unit 1A shown in, for example, FIGS. 1 to 4 will be described.

[0013] FIG. 1 is a cross-sectional view showing the configuration of a capped container 100 equipped with a cap unit 1A, with the lid body 9 in the closed position. FIG. 2 is a side view showing the configuration of a capped container 100 equipped with a cap unit 1A, with the lid body 9 in the open position. FIG. 3 is a perspective view showing the configuration of a capped container 100 equipped with a cap unit 1A, with the lid body 9 in the open position. FIG. 4 is a cross-sectional view of a surface different from that of FIG. 1, showing the configuration of the cap unit 1A, with the lid body 9 in the closed position.

[0014] As shown in Figs. 1 to 4, a capped container 100 of this embodiment includes a cap unit 1A of this embodiment and a container body 2 to which the cap unit 1A is detachably attached.

[0015] The capped container 100 is a beverage container capable of keeping a beverage (liquid) contained in the container body 2 hot or cold by the container body 2 having a vacuum insulation structure.

[0016] Specifically, the container body 2 has a bottomed cylindrical outer container 3 and an inner container 4 made of, for example, stainless steel, and is configured as a double-structure container in which the mouths of the two containers are joined together with the inner container 4 housed inside the outer container 3.

[0017] In addition, 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 vent hole provided on the bottom surface of the outer container 3 in a chamber that is depressurized (evacuated) to a high vacuum.

[0018] The container body 2 has a substantially circular bottom 2a, a body 2b that stands up in a substantially cylindrical shape from the outer periphery of the bottom 2a, and a substantially cylindrical mouth neck 2c that is tapered in diameter on the upper side of the body 2b.

[0019] The upper end of the mouth-neck portion 2c opens in a circular shape as the upper opening 2d of the container body 2. The inner peripheral surface of the mouth-neck portion 2c has a smaller diameter than the inner peripheral surface of the body portion 2b. A male screw portion 6 is provided on the outer peripheral surface of the mouth-neck portion 2c.

[0020] 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.

[0021] The cap unit 1A of this embodiment includes a cap body 7 that closes the upper opening 2d of the container body 2 described above, and a lid body 9 that is rotatably attached to the cap body 7 via a first hinge portion 8.

[0022] 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 1A (capped container 100), and the opposite side will be referred to as the "front side (front side)" of the cap unit 1A (capped container 100).

[0023] The cap body 7 is made, for example, of a heat-resistant resin, and is formed in an approximately cylindrical shape so as to be continuous with the trunk portion 2b of the container body 2.The cap body 7 has a peripheral wall portion 7a that covers the entire outer periphery, an upper wall portion 7b that covers the upper portion of the peripheral wall portion 7a and is provided with a liquid passage port 10 and an air vent port 11 that communicate with the inside of the container body 2, and an inner wall portion 7c that protrudes in an approximately cylindrical shape from the underside of the upper wall portion 7b so as to be fitted into the inside of the container body 2 from the upper opening 2d.

[0024] The inner peripheral surface of the peripheral wall portion 7a is provided with a female thread portion 12 that screws into the male thread portion 6 of the container body 2. As a result, the cap body 7 is detachably attached by screwing to the outside of the mouth-neck portion 2c in a state where it covers the upper opening 2d of the container body 2.

[0025] The liquid passage port 10 is located forward of the first hinge portion 8 of the upper wall portion 7b and is composed of a nozzle portion that protrudes upward in an approximately cylindrical shape while penetrating the upper wall portion 7b in the vertical direction.

[0026] The ventilation hole 11 is located between the liquid passage port 10 of the upper wall portion 7b and the first hinge portion 8, and is configured as a circular hole penetrating the upper wall portion 7b in the vertical direction. The ventilation hole 11 has a smaller opening area than the liquid passage port 10.

[0027] A waterproof gasket 13 is detachably attached to the inner bottom surface of the cap body 7. The waterproof gasket 13 is a sealing member for sealing (watertightening) the gap between the container body 2 and the cap body 7, and is made of an elastic member such as a heat-resistant rubber, elastomer, etc., such as silicone rubber.

[0028] The waterproof gasket 13 has a stepped shape along the lower surface of the upper wall portion 7b and the outer peripheral surface and lower end surface of the inner wall portion 7c, and is formed into a circular ring shape as a whole. The waterproof gasket 13 is fitted to the lower surface of the inside of the cap body 7 in a state in which it contacts the lower surface of the upper wall portion 7b and the outer peripheral surface of the inner wall portion 7c and covers the lower end surface of the inner wall portion 7c from below while being slightly spaced from the lower end surface of the inner wall portion 7c.

[0029] On the other hand, the water stop gasket 13 can be removed from the inside lower surface of the cap body 7 by elastically deforming (pulling and stretching) itself. This allows the water stop gasket 13 and the cap body 7 to be washed separately, and the space between the water stop gasket 13 and the cap body 7 can be kept hygienic.

[0030] In addition, an elastic flange portion 13a protruding in the radially expanding direction is provided on the upper end of the watertight packing 13 over the entire circumference. When the cap body 7 is attached to the container body 2, the elastic flange portion 13a of the watertight packing 13 elastically deforms and the upper surface side of the watertight packing 13 comes into close contact with the lower surface of the upper wall portion 7b and the upper end portion of the mouth / neck portion 2c over the entire circumference. This makes it possible to liquid-tightly seal (watertightly seal) the gap between the cap body 7 and the container body 2.

[0031] The lid body 9 is made of, for example, a heat-resistant resin, and has a peripheral wall portion 9a formed in an approximately cylindrical shape so as to be continuous with the peripheral wall portion 7a (the outer peripheral surface of the cap body 7) of the cap body 7, and a top wall portion 9b covering the top surface of the peripheral wall portion 9a.

[0032] The first hinge portion 8 is located at the rear end between the peripheral wall portion 7a and the upper wall portion 7b of the cap body 7. The cover body 9 is attached via the first hinge portion 8 so as to be freely rotatable between a position where the liquid passage port 10 and the ventilation port 11 are closed (hereinafter referred to as the "closed position") and a position where the liquid passage port 10 and the ventilation port 11 are opened (hereinafter referred to as the "open position").

[0033] A lid gasket 14 is located on the inner underside of the lid 9 and is detachably attached. The lid gasket 14 is a sealing member for sealing the gap between the cap body 7 and the lid 9, and is made of an elastic member made of the same material as the waterproof gasket 13.

[0034] The cover packing 14 has a liquid passage plug portion 14a that closes the liquid passage port 10 and an air vent plug portion 14b that closes the air vent port 11.

[0035] 1 and 3, the liquid passage plug 14a is provided so as to protrude downward in a dome shape from the lower surface of the front side of the lid packing 14. The vent plug 14b is provided so as to protrude downward in a bottomed elongated cylinder shape from the lower surface of the rear side of the lid packing 14.

[0036] The lid packing 14 also has a fitting protrusion 14c which is fitted into a hole 9c provided in the lid body 9, and a ventilation fitting portion 14d into which a cylindrical wall portion 9d provided in the lid body 9 is fitted.

[0037] The hole 9c is provided to penetrate the front side of the top wall 9b in the vertical direction in a substantially cylindrical shape. The fitting protrusion 14c is provided to protrude upward in a substantially cylindrical shape from the upper surface of the front side of the lid packing 14, which is opposite the liquid passage plug portion 14a. The tube wall portion 9d is provided to protrude downward in an elongated cylindrical shape from the lower surface of the rear side of the top wall 9b. The ventilation fitting portion 14d is provided to protrude upward from the upper surface of the rear side of the lid packing 14, which is opposite the vent plug portion 14b, so as to recess the inside of the vent plug portion 14b.

[0038] The lid gasket 14 is attached to the lower surface of the inside of the lid body 9 with the fitting protrusion 14c fitted into the hole 9c and the tube wall portion 9d fitted into the ventilation fitting portion 14d. Note that in this embodiment, the tube wall portion 9d is fitted into the ventilation fitting portion 14d described above, but the ventilation fitting portion 14d may be fitted into the tube wall portion 9d. That is, it is sufficient that the lid body 9 and the lid gasket 14 are integrated by fitting.

[0039] Here, even when the lid body 9 is in the closed position, the fitting protrusion 14c can be visually observed from the upper surface side of the lid body 9. This allows visual confirmation that the lid gasket 14 is attached to the lid body 9, not only when the lid body 9 is in the open position, and prevents forgetting to attach the lid gasket 14.

[0040] On the other hand, by removing the lid gasket 14 from the inner underside of the lid body 9, the lid gasket 14 and the lid body 9 can be washed separately, and the space between the lid gasket 14 and the lid body 9 can be kept hygienic.

[0041] Incidentally, the lid gasket 14 is configured to be detachably attached to the lid body 9 described above, but is not limited to such a configuration, and may be configured, for example, so that the lid gasket 14 is attached integrally to the lid body 9. In this case, by integrating the lid body 9 and the lid gasket 14 so that there is no gap between them, water or the like will not get between the lid gasket 14 and the lid body 9, and it is possible to maintain hygiene.

[0042] In the cap unit 1A of this embodiment, when the lid body 9 closes the upper part of the cap body 7, the liquid passage plug portion 14a elastically deforms and comes into close contact with the periphery of the upper part of the liquid passage port 10 to close the liquid passage port 10, and the vent plug portion 14b elastically deforms and comes into close contact with the periphery of the vent port 11 to close the vent port 11. This makes it possible to seal the gap between the cap body 7 and the lid body 9 via the lid packing 14.

[0043] The cap body 7 has a sealing surface 7d that comes into close contact with the vent plug portion 14b when the vent plug portion 14b closes the vent hole 11, and a ventilation protrusion 7e that protrudes upward from the upper surface of the upper wall portion 7b (cap body 7) while decreasing in diameter. The sealing surface 7d is configured as a flat surface on the upper surface of the ventilation protrusion 7e.

[0044] 1, the vent hole 11 is provided on the opposite side (front side) of the first hinge portion 8 of the seal surface 7d and the vent protrusion 7e. The vent hole 11 is provided at a position overlapping with the front side of the tip end of the cylindrical wall portion 9d in a plan view when the vent plug portion 14b is in close contact with the seal surface 7d. Furthermore, when the vent plug portion 14b is in close contact with the seal surface 7d, the inner circumferential side of the tip end of the cylindrical wall portion 9d is located inside the seal surface 7d in the front-rear direction in a plan view.

[0045] As a result, the vent plug portion 14b is pressed strongly downward against the vent hole 11 by the front side of the tip portion of the cylindrical wall portion 9d, so that the vent hole 11 can be closed reliably.

[0046] Furthermore, the sealing surface 7d and the ventilation protrusion 7e have a length in the front-to-rear direction that is three times or more the front-to-rear width of the ventilation opening 11. For example, in the prototype stage, it is possible to manufacture prototypes in which the ventilation opening 11 is positioned in a position biased toward the front, in a central position, or in a position biased toward the rear with respect to the sealing surface 7d and the ventilation protrusion 7e without overlapping the positions of the ventilation openings 11.

[0047] This makes it possible to manufacture a prototype in which only the position of the vent hole 11 is changed without changing the state of contact of the vent plug portion 14b with the entire sealing surface 7d, and to check the closed state of the vent hole 11. Also, if a problem occurs with the closed state of the vent hole 11, adjustments can be made easily, and development costs can be reduced.

[0048] The first hinge portion 8 is provided with a first biasing member (not shown) that biases the cover body 9 toward one side in the rotation direction (hereinafter referred to as the "opening direction").

[0049] The first biasing member is made of a spring member such as a torsion spring, and is attached to the inside of the first hinge portion 8.

[0050] In addition, the first biasing member is not limited to the spring member described above, but may be configured to bias the lid body 9 in the opening direction by, for example, a ring-shaped elastic member made of rubber, elastomer, etc. that is hooked between the cap body 7 and the lid body 9.

[0051] The cap unit 1A of this embodiment is equipped with a lid locking mechanism 15 that fixes the lid body 9, which has been rotated toward the other side of the rotation direction (hereinafter referred to as the "closing direction") against the force of the first biasing member, to the cap body 7.

[0052] The lid lock mechanism 15 has a lock member 17 rotatably attached to the cap body 7 via a second hinge portion 16 and a ring stopper 18 .

[0053] The locking member 17 is rotatably supported by a second hinge portion 16 provided on the front side of the cap body 7 (peripheral wall portion 7a). The locking member 17 has a first arm portion 17a extending upward from the second hinge portion 16 and a second arm portion 17b extending downward from the second hinge portion 16.

[0054] A hook portion 19 is provided at the tip of the first arm portion 17a (the upper end of the locking member 17) so as to protrude rearward.

[0055] Between the second arm portion 17b and the peripheral wall portion 7a, a second biasing member 20 made of a spring member such as a coil spring is disposed. Note that the second biasing member 20 may be made of an elastic member such as rubber or elastomer instead of the above-mentioned spring member.

[0056] The ring stopper 18 is made of a partially open ring-shaped member, and both ends thereof are rotatably supported on the outside of the second hinge portion 16. This allows the ring stopper 18 to rotate up and down.

[0057] On the other hand, the lid lock mechanism 15 has a lock receiving portion 21 to which the hook portion 19 of the lock member 17 is locked, and a stopper receiving portion 22 to which the ring stopper 18 is hooked.

[0058] The lock receiving portion 21 is a claw portion protruding forward from the lower end of the front side of the cover body 9 (peripheral wall portion 9a). The stopper receiving portion 22 is shaped to correspond to the inside of the ring stopper 18 and is a wall portion protruding forward from a position surrounding the periphery of the lock receiving portion (claw portion) 21.

[0059] In the lid locking mechanism 15, when the lid body 9 closes the upper part of the cap body 7, the hook portion 19 of the locking member 17 engages with the lock receiving portion 21, thereby maintaining the lid body 9 in a state in which it closes the upper part of the cap body 7 (closed position).

[0060] From this state, the hook portion 19 is released from the locked state with respect to the lock receiving portion 21 by pressing the second arm portion 17b side of the lock member 17 against the biasing force of the second biasing member 20. As a result, the cover body 9 biased by the first biasing member can be rotated in the opening direction to the open position.

[0061] On the other hand, in the lid lock mechanism 15, when the lid 9 closes the upper part of the cap body 7, the ring stopper 18 is hooked to the stopper receiving portion 22, thereby preventing the lid 9 from rotating in the opening direction. This makes it possible for the lid lock mechanism 15 to prevent the lid 9 from being opened by unnecessary (unintended) operation of the lock member 17.

[0062] 1 and 4, in the cap unit 1A of this embodiment, the center of the hinge shaft 8a of the first hinge portion 8 is located below the upper wall portion 7b of the cap body 7. In addition, the center of the hinge shaft 8a of the first hinge portion 8 is located outside the outermost diameter at the lower end of the peripheral wall portion 7a of the cap body 7.

[0063] Specifically, as shown in FIG. 1, the upper wall portion 7b of the cap body 7 is provided so that the side in front of the liquid passage port 10 is slightly lower than the rear side.

[0064] As a result, in the cap unit 1A of this embodiment, the length (height) of the nozzle portion of the liquid passage 10 protruding from the upper wall portion 7b can be made longer (higher) at the front, and when tilting the container body 2 to drink the beverage in the container body 2 flowing out from the liquid passage 10, the lower lip or chin does not come into contact with the upper wall portion 7b, providing a good usability for the drinker.

[0065] The upper wall portion 7b of the cap body 7 behind the liquid passage port 10 is gently inclined so that the rear is lower, and a ventilation protrusion 7e is formed on the rear side of the center thereof. Furthermore, a first hinge portion 8 is provided so as to protrude rearward from the rear end side. That is, the first hinge portion 8 is disposed so as to protrude from the side surface on the rear side of the cap body 7.

[0066] 1, the center of the hinge shaft 8a of the first hinge portion 8 is located below the highest position of the rear side of the liquid passage port 10 in the upper wall portion 7b. More specifically, the center of the hinge shaft 8a of the first hinge portion 8 is located below the highest position of the lower end (root) portion where the liquid passage port 10 rises from the upper wall portion 7b.

[0067] In addition, the peripheral wall 7a of the cap body 7 is formed so as to be continuous with the body 2b of the container body 2, and therefore the lower end side forms an outermost diameter portion that protrudes outward to approximately the same diameter as the body 2b. The center of the hinge shaft 8a of the first hinge portion 8 is located outside the outermost diameter portion of the peripheral wall 7a.

[0068] As a result, in the cap unit 1A of this embodiment, the first hinge portion 8 can be separated from the top surface of the cap body 7 to the rear side surface of the cap body 7, and when the lid body 9 is rotated to the open position shown in Figure 2, the lid body 9 can be rotated significantly toward the rear side surface of the cap body 7.

[0069] Therefore, in a capped container 100 equipped with the cap unit 1A of this embodiment, when drinking the beverage in the container body 2 flowing out from the liquid passage 10 while tilting the above-mentioned container body 2, the position of the first hinge portion 8 is moved away from the drinker's nose, so that the first hinge portion 8 and the lid body 9 do not hit the nose and do not get in the way, making it possible to further improve usability.

[0070] In addition, as shown in Figures 3 and 4, the cap unit 1A of this embodiment is configured so that when the lid body 9 is displaced forward due to an impact such as a fall, the abutment portion 9e provided on the lid body 9 side abuts against the abutted portion 7f provided on the cap main body 7 side.

[0071] Specifically, in this embodiment, the contact portion 9e is configured by a pair of bearing portions 8b on the cover body 9 side constituting the first hinge portion 8. On the other hand, the contacted portion 7f is configured by a wall portion facing the pair of bearing portions 8b on the rear side of the cap body 7.

[0072] In a capped container 100 equipped with the cap unit 1A of this embodiment, when an impact is received from the first hinge 8 side (rear side), for example due to being dropped, the lid body 9 is displaced forward and the abutment portion 9e of the lid body 9 abuts against the abutted portion 7f of the cap body 7 from the rear side.

[0073] This allows the impact to be absorbed and prevents the lid 9 from further displacing forward. Also, because the amount of displacement of the lid 9 toward the front can be kept small, it is possible to prevent the lid 9 from being unintentionally released from the locked state by the lid locking mechanism 15. Furthermore, the load applied to the first hinge portion 8 makes it difficult for the hinge shaft 8a and the bearing portion 8b to become misaligned, and it is possible to prevent damage to the first hinge portion 8 and the lid 9, such as bending the hinge shaft 8a.

[0074] Second embodiment Next, as a second embodiment of the present invention, a cap unit 1B shown in, for example, FIGS. 5 to 7 will be described.

[0075] FIG. 5 is a cross-sectional view showing the configuration of a capped container 100 equipped with a cap unit 1B, with the lid body 9 in the closed position. FIG. 6 is a side view showing the configuration of a capped container 100 equipped with a cap unit 1B, with the lid body 9 in the open position. FIG. 7 is a cross-sectional view of a surface different from that of FIG. 5, with the configuration of the cap unit 1B, with the lid body 9 in the closed position. In the following description, the same parts as those in the above-mentioned cap unit 1A will not be described and will be given the same reference numerals in the drawings.

[0076] As shown in FIGS. 5 to 7, the cap unit 1B of this embodiment has basically the same configuration as the cap unit 1A, except that the arrangement of the first hinge portion 8 is different from that of the cap unit 1A.

[0077] Specifically, in the cap unit 1B of this embodiment, the first hinge portion 8 is located on the rear side surface of the cap body 7, as shown in FIGS.

[0078] In addition, the center of the hinge shaft 8a of the first hinge portion 8 is located below the upper wall portion 7b of the cap body 7. In addition, the center of the hinge shaft 8a of the first hinge portion 8 is located outside the outermost diameter of the lower end of the peripheral wall portion 7a of the cap body 7.

[0079] 5, the rear side of the liquid passage port 10 in the upper wall portion 7b of the cap body 7 is gently inclined so that the rear is lower, and a ventilation protrusion 7e is formed on the rear side of the center. Furthermore, at the rear end side of the cap body 7, a first hinge portion 8 is formed so as to protrude rearward, stepping down from the rear end side of the upper wall portion 7b. In other words, the first hinge portion 8 is disposed so as to protrude from the side surface on the rear side of the cap body 7.

[0080] 5, the center of the hinge shaft 8a of the first hinge portion 8 is located below the lowest position of the upper wall portion 7b. Furthermore, when the cap unit 1B (cap body 7) is attached to the container body 2, the center of the hinge shaft 8a of the first hinge portion 8 is located below the upper opening 2d of the container body 2.

[0081] In addition, the peripheral wall 7a of the cap body 7 is formed so as to be continuous with the body 2b of the container body 2, and therefore the lower end side forms an outermost diameter portion that protrudes outward to approximately the same diameter as the body 2b. The center of the hinge shaft 8a of the first hinge portion 8 is located outside the outermost diameter portion of the peripheral wall 7a.

[0082] As a result, in the cap unit 1B of this embodiment, the first hinge portion 8 can be separated from the upper surface of the cap body 7 toward the lower rear side surface of the cap body 7, and when the lid body 9 is rotated to the open position shown in Figure 6, the lid body 9 can be rotated significantly toward the rear side surface of the cap body 7.

[0083] Therefore, in a capped container 100 equipped with the cap unit 1B of this embodiment, when drinking the beverage in the container body 2 flowing out from the liquid passage 10 while tilting the above-mentioned container body 2, the position of the first hinge portion 8 is moved away from the drinker's nose, so that the first hinge portion 8 and the lid body 9 do not hit the nose and do not get in the way, making it possible to further improve usability.

[0084] Furthermore, in the cap unit 1B of this embodiment, the first hinge portion 8 is located on the rear side of the cap body 7, so that in the event of an impact from the first hinge portion 8 side (rear side) due to, for example, being dropped, the above-mentioned lid body 9 is displaced forward and the abutment portion 9e of the lid body 9 abuts against the abutted portion 7f of the cap body 7 from the rear side.

[0085] This allows the impact to be absorbed and prevents the lid 9 from further displacing forward. Also, because the amount of displacement of the lid 9 toward the front can be kept small, it is possible to prevent the lid 9 from being unintentionally released from the locked state by the lid locking mechanism 15. Furthermore, the load applied to the first hinge portion 8 makes it difficult for the hinge shaft 8a and the bearing portion 8b to become misaligned, and it is possible to prevent damage to the first hinge portion 8 and the lid 9, such as bending the hinge shaft 8a.

[0086] 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.

[0087] 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]

[0088] REFERENCE SIGNS LIST 1A, 1B: cap unit 2: container body 7: cap body 7a: peripheral wall portion 7b: upper wall portion 7d: sealing surface 8: first hinge portion 8a: hinge shaft 9: lid body 10: liquid passage port 11: ventilation port 13: water stop packing 14: lid packing 14a: liquid passage stopper portion 15: lid lock mechanism 100: container with cap

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 at an upper portion thereof that communicates with the inside of the container body; a lid body that is rotatably attached to the cap body via a hinge portion and opens and closes the liquid passage port, The cap body is formed in a substantially cylindrical shape and has a peripheral wall portion covering an outer periphery side and an upper wall portion covering an upper portion of the peripheral wall portion, A cap unit, characterized in that a center of a hinge axis of the hinge portion is located below a highest point of the upper wall portion.

2. 2. The cap unit according to claim 1, wherein, when the cap body is attached to the container body, the center of the hinge axis of the hinge portion is located below an upper opening of the container body.

3. 2. The cap unit according to claim 1, wherein a center of a hinge shaft of the hinge portion is positioned outside an outermost diameter portion of the peripheral wall portion.

4. The cap body has a contact portion, The cap unit according to claim 1 , wherein the lid body has an abutting portion that abuts against the abutted portion from a rear side when the lid body is displaced forward.

5. A cap unit according to any one of claims 1 to 4, A capped container comprising: a container body to which the cap unit is attached.

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