Cap unit and container with cap

Abstract

To make it possible to open a lid body surely, even when a container body is decompressed, and to enhance appearance of an appearance design with a good use feeling.SOLUTION: A cap unit includes: a cap body 10; a lid body 20 for closing a liquid passing port 11 openably; a water stop packing 35; a lid lock mechanism 40 for fixing the lid body 20; and a lid opening mechanism 60 for pushing up the lid body 20 at a closing position according to an operation for releasing a fixed state of the lid body 20 and capable of opening the liquid passing port 11. The lid lock mechanism 40 has a lock member 42, and a rotary shaft 47 for supporting the lock member 42 rotatably. The lid opening mechanism 60 has a lever part 61 provided integrally with the lock member 42. The lever part 61 has: a lever body 61a rotated in a lock release direction around the rotary shaft 47 together with the lock member 42, and extending backward from the lock member 42; and a push up part 61c protruding at least upward from the lever body 61a, and capable of pushing up the lid body 20 by the rotation of the lever part 61.SELECTED DRAWING: Figure 7

Description

[Technical Field]

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

[0002] BACKGROUND ART Conventionally, a cap unit that can be detachably attached to the mouth and neck portion of a container body that is open at the top has been known (for example, Patent Document 1). The cap unit of Patent Document 1 comprises a cap body having a liquid passage, a lid body that is rotatably attached to the cap body via a hinge and that blocks the liquid passage with a lid gasket when biased in the direction of opening the liquid passage (opening direction), and a lid locking mechanism that fixes the lid body to the cap body in the closed position where the lid body blocks the liquid passage.

[0003] For example, if a hot beverage is poured into the container body and the lid is closed, the beverage may cool down and the pressure inside the container body may decrease over time. In such a case, even if the user attempts to release the lid from its locked state by the lid locking mechanism, the lid gasket may stick to the liquid passage hole, preventing the lid from opening.

[0004] In Patent Document 1, legs are provided on the locking member (opening / closing operation member) of the lid locking mechanism. When the locking member is rotated around the rotation axis (swing axis) during the operation to release the fixed state of the lid, the legs rotate together with the locking member. Even if the pressure inside the container body is reduced, the legs kick up the lid, forcing it open. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2008-125965 Summary of the Invention [Problem to be solved by the invention]

[0006] However, when legs are provided as in Patent Document 1, the following problems arise. When the locking member is pushed in and rotated about the rotation axis, if the legs come into contact with the lid before the locking member is released from the lid, the lid will not open.

[0007] To prevent such problems, it is effective to increase the dimensions of the part of the locking member that extends upward from the pivot axis, thereby ensuring a large rotation range for the locking member. However, in this case, there is a risk that the locking member may come into contact with the lips or chin when the user drinks a beverage, causing a hindrance, or that the aesthetic appeal of the exterior design of the container may be impaired.

[0008] The present invention was made in consideration of the above circumstances, and one of its objects is to provide a cap unit and a capped container that can reliably open the lid even when the pressure inside the container body is reduced, and that is easy to use and has an aesthetically pleasing exterior design. [Means for solving the problem]

[0009] [Aspect 1 of the present invention] a cap unit that can be detachably attached to a container body that is open at the top, the cap unit comprising: a cap body that is attached to a neck portion of the container body and has a liquid passage that communicates the inside and outside of the container body; a lid body that is rotatably attached to the cap body via a hinge and that releasably closes the liquid passage when biased in an opening direction about the hinge; a waterproof packing that seals the gap between the cap body and the container body; a lid locking mechanism that fixes the lid body to the cap body when the lid body is in a closed position where it closes the liquid passage; and a locking mechanism that locks the lid body in the closed position when the lid locking mechanism is released from the fixed state of the lid body. a lid opening mechanism that can be pushed up to open the liquid passage port, wherein the lid locking mechanism has a locking member that engages with the lid body to fix the lid body in the closed position, and a pivot shaft that supports the locking member so that it can rotate freely, and the lid opening mechanism has a lever portion that is formed integrally with the locking member, the lever portion being located rearward of the pivot shaft and pivoting together with the locking member in the unlocking direction around the pivot shaft, and the lever portion having a lever main body extending rearward from the locking member, and a push-up portion that protrudes at least upward from the lever main body and can push up the lid body by rotating the lever portion.

[0010] [Aspect 2 of the present invention] The cap unit of aspect 1, wherein the push-up portion is configured to contact the lid body when the locking member rotates in the unlocking direction and the locking member is released from engagement with the lid body.

[0011] [Embodiment 3 of the present invention] A cap unit according to aspect 1 or 2, wherein the lid body has a pushed-up surface with which the pushing-up portion comes into contact, and the pushed-up surface is an inclined surface that slopes upward as it approaches the rear side.

[0012] [Aspect 4 of the present invention] A cap unit described in any one of aspects 1 to 3, wherein when the locking member rotates in the unlocking direction, the pushing-up portion pushes up the lid body from a state in which it is in contact with the lid body to a position in which the lid body opens the liquid passage port.

[0013] [Embodiment 5 of the present invention] A cap unit described in any one of aspects 1 to 4, wherein the locking member rotates in the unlocking direction and the push-up portion contacts the lid body, and the locking member can further rotate in the unlocking direction.

[0014] [Aspect 6 of the present invention] A cap unit described in any one of aspects 1 to 5, wherein the lever portion has a recess that is recessed in a direction away from a portion of the front end of the lid body, and the portion is inserted into the recess when the lever portion is rotated, but the portion does not come into contact.

[0015] [Embodiment 7 of the present invention] A capped container comprising the cap unit according to any one of aspects 1 to 6 and the container body to which the cap unit is attached. [Effects of the Invention]

[0016] According to the cap unit and capped container of the above aspects of the present invention, the lid can be opened reliably even when the pressure inside the container body is reduced, and the usability is good and the aesthetic appearance of the exterior design is improved. [Brief explanation of the drawings]

[0017] [Figure 1] FIG. 1 is a perspective view showing a capped container of this embodiment. [Figure 2] FIG. 2 is a cross-sectional view showing a container with a cap. [Figure 3] FIG. 3 is a cross-sectional view showing a part of the capped container, showing the lid in the closed state (closed position) and the lid locking mechanism in the locked state. [Figure 4]FIG. 4 is an exploded perspective view showing a part of the capped container. [Figure 5] FIG. 5 is an exploded perspective view showing a part of the capped container. [Figure 6] FIG. 6 is a cross-sectional view showing a part of the capped container, illustrating the process of unlocking the lid locking mechanism when the lid is in the closed state (closed position). [Figure 7] FIG. 7 is a cross-sectional view showing a part of the capped container, illustrating the process of unlocking the lid locking mechanism when the lid is in the closed state (closed position). [Figure 8] FIG. 8 is a cross-sectional view showing a part of the capped container, illustrating the process in which the lid body changes from a closed state (closed position) to an open state (open position). [Figure 9] FIG. 9 is a cross-sectional view showing a part of the capped container, with the lid body in an open state (open position) and the lid locking mechanism in an unlocked state. [Figure 10] FIG. 10 is an exploded perspective view showing a part of the lid locking mechanism and the lid opening mechanism. [Figure 11] FIG. 11 is an exploded perspective view showing a part of the lid locking mechanism and the lid opening mechanism. DETAILED DESCRIPTION OF THE INVENTION

[0018] A cap unit 3 according to one embodiment of the present invention and a capped container 1 equipped with the same will be described with reference to the drawings. In this embodiment, the cap unit 3 may be simply referred to as a cap, and the capped container 1 may be simply referred to as a container.

[0019] As shown in Figures 1 and 2, the capped container 1 of this embodiment includes a cap unit 3 and a cylindrical container body 2 with a bottom to which the cap unit 3 is attached. The cap unit 3 is detachably attached to the mouth / neck portion 2c of the container body 2, which is open at the top. The cap unit 3 forms a stopper that closes the top opening 2d of the container body 2. The constituent members of the cap unit 3 are mainly made of resin, and the constituent members of the container body 2 are mainly made of metal.

[0020] As shown in Figure 3, the cap unit 3 is cylindrical, i.e., capped, with a top wall (top wall), and is attached to the neck portion 2c of the container body 2. The cap body 10 has a liquid passage 11 connecting the inside and outside of the container body 2, a capped cylindrical lid body 20 that is arranged above the cap body 10 and blocks the liquid passage 11, a hinge 31 that rotatably connects the lid body 20 to the cap body 10, a waterproof gasket 35 that seals the space between the cap body 10 and the container body 2, a lid locking mechanism 40 that fixes the lid body 20 to the cap body 10, and a lid opening mechanism 60. The cap unit 3 and the container body 2 are arranged coaxially with each other about a central axis C.

[0021] In this embodiment, the direction in which the central axis C extends is referred to as the vertical direction. Within the vertical direction, the direction from the bottom surface 2a of the container body 2 to the lid top wall 20b of the lid body 20 is referred to as the upper side, and the direction from the lid top wall 20b to the bottom surface 2a is referred to as the lower side. The direction perpendicular to the central axis C is called the radial direction. Within the radial direction, the direction approaching the central axis C is called the radially inner direction or simply the inner direction, and the direction away from the central axis C is called the radially outer direction or simply the outer direction.

[0022] Among the radial directions, the direction passing through the hinge 31 and the central axis C is called the front-rear direction. Among the front-rear directions, the direction from the hinge 31 toward the central axis C is called the front side, and the direction from the central axis C toward the hinge 31 is called the rear side.

[0023] In addition, the radial direction perpendicular to the front-rear direction is referred to as the left-right direction. As shown in Figure 2, when the capped container 1 is in an upright position with the lid top wall portion 20b of the lid body 20 facing vertically upward and viewed from the front, the direction toward the left in the left-right direction is referred to as the left side, and the direction toward the right is referred to as the right side. The direction going around the central axis C is called the circumferential direction.

[0024] The central axis C may be referred to as the cap central axis C or the container central axis C, to distinguish it from the hinge central axis A1 and the lock hinge central axis A2 described later.

[0025] As shown in Fig. 2, the capped container 1 has a container body 2 with a vacuum insulation structure, which can keep the contents, such as a beverage (not shown), warm or cold. The container body 2 is cylindrical and has an open top and a closed bottom. Note that the container body 2 may also contain contents other than a beverage.

[0026] Specifically, the container body 2 has a cylindrical outer container 4 with a bottom made of, for example, stainless steel, and an inner container 5, and is configured as a double-structure container in which the mouths of the two containers are joined together with the inner container 5 housed inside the outer container 4.

[0027] A vacuum insulation layer 6 is provided between the outer container 4 and the inner container 5. The vacuum insulation layer 6 can be formed, for example, by blocking a vent hole provided in the center of the bottom surface of the outer container 4 in a chamber that has been depressurized (evacuated) to a high vacuum.

[0028] The container body 2 has a bottom surface 2a that is approximately disc-shaped, a body 2b that is approximately cylindrical and whose lower end is connected to the outer periphery of the bottom surface 2a, and a neck opening 2c that is positioned above the body 2b and has a smaller diameter than the body 2b.

[0029] The inner periphery of the neck portion 2c is smaller in diameter than the inner periphery of the body portion 2b. The upper end of the neck portion 2c opens in a circular shape as the upper opening 2d of the container body 2. As shown in Fig. 3, the neck portion 2c has a male thread portion 7, a protruding portion 8, and a shoulder portion 2e.

[0030] The male thread portion 7 is disposed on the outer periphery of the neck portion 2c. The protruding portion 8 is disposed on the inner periphery of the mouth and neck portion 2c. The protruding portion 8 protrudes radially inward from the inner periphery of the mouth and neck portion 2c and extends around the entire circumferential direction. The protruding portion 8 is annular, centered on the central axis C, and is located at the innermost position of the mouth and neck portion 2c.

[0031] The shoulder 2e is located on the outer periphery of the lower end of the neck portion 2c. The shoulder 2e is tapered, with the diameter decreasing as it extends upward. The portion of the neck portion 2c adjacent to the upper side of the shoulder 2e is generally cylindrical and extends in the vertical direction. A male thread portion 7 is located in the portion of the neck portion 2c adjacent to the upper side of the shoulder 2e.

[0032] Although the capped container 1 of this embodiment has a generally cylindrical external shape as shown in Fig. 1, the external shape of the capped container 1 is not particularly limited and can be modified as appropriate to suit the size, design, etc. Furthermore, the outer surfaces (surfaces) of the container body 2, the cap body 10, and the lid body 20 may be painted, printed, or the like.

[0033] 3, the cap body 10 has a peripheral wall portion 10a formed in a substantially cylindrical shape so as to be continuous with the barrel portion 2b of the container body 2, and a top wall portion 10b connected to the upper end of the peripheral wall portion 10a. The top wall portion 10b also has an opening 10c that passes through the top wall portion 10b in the vertical direction.

[0034] The inner peripheral surface of the peripheral wall portion 10a is provided with a female thread portion 12. The female thread portion 12 is threadably engaged with the male thread portion 7 of the neck portion 2c. This allows the cap body 10 to be detachably attached to the neck portion 2c of the container body 2 by threading.

[0035] As shown in Figure 4, bearings 15 are provided on the outer peripheral surface of the peripheral wall 10a. The bearings 15 protrude forward from the front end of the peripheral wall 10a. A pair of bearings 15 are provided with a gap between them in the left-right direction. Each bearing 15 is plate-shaped and extends in a direction perpendicular to the locking hinge central axis A2 (see Figure 1), which will be described later.

[0036] Additionally, a biasing portion accommodating wall 16 is provided on the outer peripheral surface of the peripheral wall portion 10a. The biasing portion accommodating wall 16 protrudes forward from the front end portion of the peripheral wall portion 10a. When viewed from the front side, the biasing portion accommodating wall 16 has a U-shape that opens upward. A pair of upper ends of the biasing portion accommodating wall 16 are connected to the bearing portions 15, respectively.

[0037] As shown in Figures 3 and 9, the cap body 10 has an opening-forming member 13 that is attached to the opening 10c of the cap body 10 and in which the liquid passage port 11 is arranged, and an opening-detachment mechanism 14 that detachably fixes the opening-forming member 13 to the opening 10c.

[0038] The spout-forming member 13 is detachably attached to the opening 10c and forms a drinking spout or a pouring spout (a drinking spout in this embodiment). The spout-forming member 13 has a bottom wall 13a in which the liquid passage 11 is formed, a cylindrical peripheral wall 13b rising upward from the periphery of the bottom wall 13a, a lower flange 13c extending radially outward from the lower end of the bottom wall 13a, claws 13e protruding forward from the outer peripheral surface of the peripheral wall 13b, a pair of upper flanges (not shown) protruding from the left and right sides of the outer peripheral surface of the peripheral wall 13b and extending in the front-to-rear direction, and a diagonally cut drinking spout 13d located at the upper opening edge of the peripheral wall 13b and extending downward from the front end of the upper opening edge toward the rear.

[0039] The claws 13e are engaged from above with the engaging recesses 10d recessed downward from the upper surface of the top wall 10b of the cap body 10. Although not shown, the pair of upper flanges are positioned lower than the claws 13e in the vertical direction and contact the lower surface of the top wall 10b from below. This positions the opening-forming member 13 in the opening 10c in a vertically aligned state.

[0040] The mouth detachable mechanism 14 is a member for detachably attaching the mouth-forming member 13 to the opening 10c of the cap body 10. The mouth detachable mechanism 14 is disposed between the mouth-forming member 13 and the hinge 31 in the front-rear direction. More specifically, the mouth detachable mechanism 14 is provided between the rear end of the inner periphery of the opening 10c and the rear end of the peripheral wall portion 13b of the mouth-forming member 13. The mouth detachable mechanism 14 is connected to the mouth forming member 13 via a detachable shaft 17. The detachable shaft 17 extends in the left-right direction, and the mouth detachable mechanism 14 is rotatable around the central axis of the detachable shaft 17.

[0041] The mouth detachable mechanism 14 has an elastically deformable elastic portion (elastic piece) 14a. The elastic portion 14a is sandwiched between the main body wall of the mouth detachable mechanism 14 and the rear end of the peripheral wall 13b of the mouth forming member 13.

[0042] When assembling the cap unit 3, the elastic portion 14a is elastically deformed so as to contract in the front-to-rear direction, thereby enabling the opening-forming member 13 and the opening-removing mechanism 14 to be fitted into the opening 10c. After this fitting, the elastically deformed elastic portion 14a is restored to its original shape so as to extend in the front-to-rear direction, whereby the opening-forming member 13 and the opening-removing mechanism 14 are pressed against the inner periphery of the opening 10c and fitted thereto, and are fixed to the opening 10c.

[0043] The opening-forming member 13 may be configured to be detachable from the top wall portion 10b of the cap body 10 as in this embodiment, or may be formed integrally with the top wall portion 10b.

[0044] As shown in Fig. 3, the waterproof gasket 35 is detachably attached to the lower flange portion 13c of the opening-forming member 13. The waterproof gasket 35 is a ring-shaped sealing member for sealing the gap between the protruding portion 8 and the opening-forming member 13. The waterproof gasket 35 is made of an elastic material such as heat-resistant rubber, elastomer, or the like, for example, silicone rubber.

[0045] An inner peripheral recess 35a recessed radially outward is provided around the entire periphery of the inner peripheral portion of the watertight gasket 35. The watertight gasket 35 is attached to the opening-forming member 13 by fitting the inner peripheral recess 35a into the lower flange portion 13c.

[0046] Elastic flange portions 35b are provided on the outer peripheral surface of the watertight gasket 35 so as to protrude radially outward. The elastic flange portions 35b are arranged on the outer peripheral portion of the watertight gasket 35 and extend around the entire circumference in the circumferential direction. In this embodiment, two elastic flange portions 35b are provided, aligned vertically.

[0047] When the cap unit 3 is attached to the container body 2, the elastic flange portion 35b elastically deforms and comes into close contact with the protruding portion 8 of the container body 2 over the entire circumferential direction. This enables the waterproof gasket 35 to liquid-tightly seal the gap between the opening-forming member 13 (cap body 10) and the protruding portion 8 (container body 2).

[0048] The watertight gasket 35 can be elastically deformed by pulling and stretching itself, and can be removed from the lower flange portion 13c. This allows the opening-forming member 13 and the watertight gasket 35 to be washed separately, and the space between the opening-forming member 13 and the watertight gasket 35 can be kept hygienic.

[0049] It should be noted that the number of elastic flange portions 35b is not limited to the two mentioned above, but may be one or three or more. Furthermore, the waterproof gasket 35 is not limited to the configuration provided with the elastic flange portions 35b mentioned above, and the shape thereof may be modified as appropriate.

[0050] As shown in FIGS. 3 and 9, the lid 20 opens and closes the liquid passage opening 11, which is a drinking spout or pouring spout of the spout-forming member 13. Specifically, the lid body 20 is connected to the cap body 10 via a hinge 31, and is thereby rotatable about the hinge 31 between a closed state (blocked position) shown in Fig. 3 and an open state (open position) shown in Fig. 9. The closed state (blocked position) of the lid body 20 shown in Fig. 3 is a position where the lid body 20 blocks the liquid passage port 11, and the open state (open position) of the lid body 20 shown in Fig. 9 is a position where the lid body 20 opens the liquid passage port 11. Also, Fig. 8 shows a process (intermediate stage) of the lid body 20 transitioning from the closed state to the open state.

[0051] The lid body 20 is biased in a direction that opens the liquid passage port 11, i.e., in the opening direction, around the central axis A1 of the hinge 31 (hereinafter referred to as the hinge central axis A1) by a torsion spring (not shown) provided on the hinge 31. That is, the lid body 20 is rotatably attached to the cap body 10 via the hinge 31, and releasably closes the liquid passage port 11 while being biased in the opening direction around the hinge 31.

[0052] As shown in Figures 3 to 5, the lid body 20 has a lid peripheral wall portion 20a formed in an approximately cylindrical shape so as to be continuous with the peripheral wall portion 10a of the cap body 10, a lid top wall portion 20b connected to the upper end of the lid peripheral wall portion 20a, and a cylindrical inner wall portion 20c protruding downward from the lid top wall portion 20b.

[0053] Furthermore, a lid gasket 21 that closes the liquid passage port 11 of the opening-forming member 13 is provided on the inside of the lid body 20. That is, the lid body 20 has the lid gasket 21. The lid gasket 21 is a plug-shaped sealing member that seals the liquid passage port 11. The lid gasket 21 is made of an elastic member, and for example, the same material as the waterproof gasket 35 can be used.

[0054] The lid packing 21 is substantially cylindrical with a bottom, and is detachably attached to the inner wall portion 20c with the inner wall portion 20c fitted inside the lid packing 21. The bottom surface (lower surface) of the lid packing 21 is formed in a dome shape that is convex downward.

[0055] In this cap unit 3, when the lid body 20 closes the top of the cap body 10, the lid gasket 21 elastically deforms and comes into close contact with the periphery of the liquid passage hole 11. This allows the liquid passage hole 11 of the opening-forming member 13 to be closed.

[0056] When lid gasket 21 is attached to inner wall portion 20c, it is elastically deformed to expand in diameter, and inner wall portion 20c is tightly fitted inside lid gasket 21, thereby being tightly fixed to inner wall portion 20c. Therefore, even if a negative pressure is created inside container body 2 when lid body 20 is in the closed position and a tensile force toward the inside of container body 2 acts on lid gasket 21, lid gasket 21 is prevented from coming off inner wall portion 20c when lid body 20 is opened. Therefore, when lid body 20 is in the open state, liquid passage port 11 can be stably opened.

[0057] Lid top wall portion 20b has a lid recess 20d recessed downward from the upper surface of lid top wall portion 20b. A cover member 22 that covers inner wall portion 20c from above is attached to lid recess 20d. In other words, lid body 20 has cover member 22. Cover member 22 is formed in a substantially circular plate shape.

[0058] The cover member 22 may be made of the same material as the lid top wall portion 20b of the lid body 20, or may be made of a different material or color. For example, the cover member 22 may be made of a transparent material. Also, a three-dimensional structure may be placed on the top of the cover member 22, or an engraving may be applied to the top surface. This allows the cap unit 3 to have an excellent design.

[0059] As shown in Fig. 3, the lid body 20 has a pushed-up surface 20e. The pushed-up surface 20e is located at the front end of the lid body 20. Specifically, the pushed-up surface 20e is located at the front lower end of the lid peripheral wall portion 20a. The pushed-up surface 20e is an inclined surface that slopes upward toward the rear. In this embodiment, the pushed-up surface 20e is formed as a flat surface.

[0060] The hinge 31 is disposed at the rear of the cap unit 3. The hinge 31 connects the rear upper end of the cap body 10 and the rear of the lid body 20 so that they can rotate freely relative to each other around the hinge central axis A1. The hinge central axis A1 extends in the left-right direction. The hinge central axis A1 is disposed rearward of the central axis C. The hinge central axis A1 and the central axis C are in twisted positions relative to each other.

[0061] The hinge 31 has a torsion spring (biasing portion) (not shown). The torsion spring is a torsion coil spring that extends spirally around the hinge central axis A1. The torsion spring biases the lid body 20 relative to the cap body 10 in the opening direction around the hinge 31 (around the hinge central axis A1).

[0062] The lid locking mechanism 40 is disposed at the front of the cap unit 3. When the lid body 20 is in the closed position where it closes the liquid passage port 11, the lid locking mechanism 40 fixes the lid body 20 to the cap body 10 against the biasing force of the torsion spring of the hinge 31. The lid locking mechanism 40 fixes the front end of the cap body 10 and the front end of the lid body 20 together.

[0063] Specifically, Fig. 3 shows the state in which the lid body 20 in the closed state (blocking position) is fixed to the cap body 10 by the lid locking mechanism 40 (i.e., the locked state of the lid locking mechanism 40). Fig. 9 shows the state in which the lid body 20 is unlocked by the lid locking mechanism 40 (i.e., the unlocked state of the lid locking mechanism 40). Fig. 6 shows the process (intermediate stage) of operating the lid locking mechanism 40 to unlock the lid body 20 when it is in the closed state.

[0064] As shown in Figures 3 to 5, the lid locking mechanism 40 has a locking hinge 41, a locking member 42 rotatably attached to the cap body 10 via the locking hinge 41, a lock biasing portion 43 that biases the locking member 42, a ring stopper 44 rotatably attached to the cap body 10 via the locking hinge 41, a lock receiving portion 45 to which the locking member 42 is engaged, and a stopper receiving portion 46 to which the ring stopper 44 is hooked.

[0065] The locking hinge 41 is provided at the front end of the peripheral wall portion 10a of the cap body 10. The locking hinge 41 connects the front end of the cap body 10 and the locking member 42 so as to be rotatable relative to each other about a central axis A2 of the locking hinge 41 (hereinafter referred to as the locking hinge central axis A2). The locking hinge 41 also connects the front end of the cap body 10 and both left and right ends of the ring stopper 44 so as to be rotatable relative to each other about the locking hinge central axis A2.

[0066] The locking hinge central axis A2 extends in the left-right direction. In this embodiment, the locking hinge central axis A2 and the hinge central axis A1 extend parallel to each other. The locking hinge central axis A2 is disposed forward of the central axis C. The locking hinge central axis A2 and the central axis C are skewed relative to each other.

[0067] The locking hinge 41 has a rotation shaft 47. That is, the lid locking mechanism 40 has the rotation shaft 47. The rotation shaft 47 is cylindrical and has its center on the locking hinge central axis A2, and extends in the left-right direction. The rotation shaft 47 penetrates through a pair of bearing portions 15 of the cap body 10 in the left-right direction, and is supported by the pair of bearing portions 15. The rotation shaft 47 also supports the locking member 42 and the ring stopper 44 so that they can rotate freely around the locking hinge central axis A2.

[0068] Here, in this embodiment, as shown in Figure 3, when viewing the cap unit 3 from the right side along the direction in which the lock hinge central axis A2 extends, the clockwise direction of rotation around the lock hinge central axis A2 (around the rotation axis 47) is called the lock direction, and the counterclockwise direction of rotation is called the unlock direction. The locking direction is the direction in which (locking member 42 of) the lid locking mechanism 40 secures the lid 20. The unlocking direction is the direction in which (locking member 42 of) the lid locking mechanism 40 releases the securement of the lid 20.

[0069] The locking member 42 is a member that is engaged with the lid body 20 to fix the lid body 20 in the closed position. The locking member 42 is operated by the user when releasing the fixed state of the lid body 20 in the closed position. In this embodiment, the locking member 42 has a columnar shape that extends vertically as a whole.

[0070] As shown in Figures 3, 10 and 11, the locking member 42 has a lock bearing portion 42c supported by the pivot shaft 47 (lock hinge 41), a first extension portion 42a extending upward from the lock bearing portion 42c, a second extension portion 42b extending downward from the lock bearing portion 42c, and a lock cover 51. The lock bearing portion 42c, the first extension portion 42a, and the second extension portion 42b are made of, for example, resin. The lock cover 51 is made of, for example, metal such as stainless steel.

[0071] The lock bearing portion 42c is disposed in approximately the center of the lock member 42 in the up-down direction, and protrudes rearward from the first extension portion 42a and the second extension portion 42b. The lock bearing portion 42c has an insertion hole 42d that passes through the lock bearing portion 42c in the left-right direction. A rotation shaft 47 is inserted through the insertion hole 42d.

[0072] The first extension 42a is columnar or plate-shaped and extends upward from the front portion of the lock bearing 42c. A hook 48 is provided at the upper end of the first extension 42a and protrudes rearward. As shown in FIG. 3, the hook 48 is detachably engaged with the lock receiving portion 45 of the lid 20. That is, the locking member 42 is detachably engaged with the lid 20.

[0073] 10 and 11, the second extension portion 42b is shaped like a column or a plate and extends downward from the front portion of the lock bearing portion 42c. The second extension portion 42b has a biasing portion insertion hole 42e that penetrates the second extension portion 42b in the front-rear direction.

[0074] The lock cover 51 has a front cover 51a and a pair of side covers 51b. The front cover 51a is a plate-like member that extends in a direction perpendicular to the front-rear direction. In this embodiment, the front cover 51a is a generally oval or rectangular plate-like member that extends in the up-down direction. The front cover 51a is disposed so as to cover the front sides of the lock bearing 42c, the first extension 42a, and the second extension 42b.

[0075] The side covers 51b are plate-shaped and extend in a direction perpendicular to the lock hinge central axis A2, and in this embodiment are substantially rectangular. The pair of side covers 51b are arranged at a distance from each other in the left-right direction. The pair of side covers 51b are connected to both left-right ends of the front cover 51a. The lock bearing 42c is sandwiched between the pair of side covers 51b. The pair of side covers 51b cover the lock bearing 42c from both left-right sides. Furthermore, the lock bearing portion 42c and the pair of side covers 51b are disposed between the pair of bearing portions 15 in the left-right direction (see FIGS. 1 and 4).

[0076] The pair of side covers 51b each have a cover hole 51c. Each cover hole 51c penetrates the corresponding side cover 51b in the left-right direction. The pair of cover holes 51c overlap with the insertion hole 42d when viewed from the left-right direction. The rotation shaft 47 is inserted into the pair of cover holes 51c.

[0077] In this embodiment, the locking member 42 is provided with the locking cover 51, which can improve the aesthetic appeal of the external design of the cap unit 3. In addition, the strength of the locking member 42 can be improved.

[0078] The lock biasing portion 43 is made of an elastic material such as heat-resistant rubber or elastomer, for example, silicone rubber. That is, the lock biasing portion 43 is elastically deformable. As shown in FIGS. 3 to 5, the lock biasing portion 43 is disposed between the front end portion of the peripheral wall portion 10a of the cap body 10 and the second extension portion 42b of the locking member 42. At least the rear end portion of the lock biasing portion 43 is housed inside the biasing portion housing wall 16.

[0079] 6 to 9, when a user pushes the second extension portion 42b of the locking member 42 rearward, the lock biasing portion 43 elastically deforms so as to contract in the front-to-rear direction between the peripheral wall portion 10a and the second extension portion 42b. This causes the lock biasing portion 43 to bias the second extension portion 42b forward. In other words, the locking member 42 is biased by the lock biasing portion 43 in the locking direction around the rotation axis 47 (around the lock hinge center axis A2).

[0080] In this embodiment, as shown in FIG. 3, even when the user is not pushing the second extension portion 42b of the locking member 42 rearward, the locking biasing portion 43 is slightly elastically deformed in the front-to-rear direction, and the locking member 42 is biased in the locking direction around the rotation axis 47 by the locking biasing portion 43.

[0081] As shown in FIGS. 10 and 11, the lock biasing portion 43 has an elastic deformation portion 43a and an insertion protrusion 43b. The elastic deformation portion 43a has a columnar shape extending in the front-rear direction. The elastic deformation portion 43a is sandwiched between the peripheral wall portion 10a and the second extension portion 42b in the front-rear direction. The elastic deformation portion 43a has a hollow hole 43c. The hollow hole 43c penetrates the elastic deformation portion 43a in the left-right direction. The provision of the hollow hole 43c ensures a large amount of elastic deformation of the elastic deformation portion 43a.

[0082] The insertion protrusion 43b is columnar and protrudes forward from the elastic deformation portion 43a. The outer diameter of the insertion protrusion 43b (the dimension in the direction perpendicular to the front-rear direction) is smaller than the outer diameter of the elastic deformation portion 43a. In other words, the outer diameter of the elastic deformation portion 43a is larger than that of the insertion protrusion 43b. The insertion protrusion 43b is inserted into the biasing portion insertion hole 42e of the second extension portion 42b.

[0083] 1, 4, and 5, the ring stopper 44 is a member that extends in a substantially arc-shaped curve around the periphery of the upper portion of the locking member 42, and both ends thereof are rotatably supported by the rotation shaft 47 (lock hinge 41). This allows the ring stopper 44 to rotate in the vertical direction around the locking hinge 41, and more specifically, it can rotate around the rotation shaft 47 in the locking direction and the unlocking direction.

[0084] The ring stopper 44 has a ring bearing portion 44a and a ring insertion hole 44b. A pair of ring bearing portions 44a are provided at both ends of the ring stopper 44. The pair of ring bearing portions 44a are arranged at a distance from each other in the left-right direction. A pair of bearing portions 15 are arranged between the pair of ring bearing portions 44a.

[0085] The pair of ring bearing portions 44a each have a ring insertion hole 44b. Each ring insertion hole 44b passes through the corresponding ring bearing portion 44a in the left-right direction. A rotation shaft 47 is inserted through the pair of ring insertion holes 44b.

[0086] 3, the lock receiving portion 45 is a claw-like portion that protrudes forward from the front lower end of the lid peripheral wall portion 20a of the lid body 20. When the lid body 20 is in the closed position, the lock receiving portion 45 is disposed behind the first extension portion 42a of the locking member 42 and faces the first extension portion 42a.

[0087] 4, the stopper receiving portion 46 has a shape that fits into the inner peripheral portion of the ring stopper 44, and protrudes forward from a position on the front end of the lid peripheral wall portion 20a that surrounds the periphery of the lock receiving portion 45. When viewed from the front, the stopper receiving portion 46 is a substantially U-shaped wall that opens downward. As shown in FIG. 3, when the hook portion 48 is engaged with the lock receiving portion 45 , the hook portion 48 is inserted between the stopper receiving portion 46 and the lock receiving portion 45 .

[0088] In the lid lock mechanism 40, when the lid 20 closes the top of the cap body 10 as shown in Fig. 3, the hook portion 48 of the locking member 42 is engaged with the lock receiving portion 45, thereby maintaining the lid 20 in a state in which it closes the top of the cap body 10, i.e., the closed position of the lid 20. From this state, the user releases the engagement between the ring stopper 44 and the stopper receiving portion 46 and presses the second extension portion 42b of the locking member 42 rearward against the biasing force of the lock biasing portion 43. As shown in Fig. 6, the locking member 42 rotates about the lock hinge 41 and the first extension portion 42a is displaced forward, thereby releasing the engagement of the hook portion 48 with the lock receiving portion 45. In other words, the user rotates the locking member 42 around the rotation shaft 47 in the unlocking direction, thereby releasing the fixed state (locked state) of the lid 20 by the lid lock mechanism 40. This allows the lid 20 to be rotated in the opening direction by the biasing force of the torsion spring in the hinge 31, as shown in FIG.

[0089] 1 and 3, in the lid locking mechanism 40, when the lid 20 closes the top of the cap body 10, the ring stopper 44 is rotated in the locking direction about the rotation shaft 47 and latched onto the stopper receiving portion 46, thereby preventing the lid 20 from rotating in the opening direction. This makes it possible for the lid locking mechanism 40 to prevent the lid 20 from opening due to unnecessary (unintentional) operation of the locking member 42, etc. Furthermore, as shown in FIG. 6, the engagement state of the ring stopper 44 with the stopper receiving portion 46 is released by rotating the ring stopper 44 in the unlocking direction about the rotation shaft 47.

[0090] As shown in Figure 3, the lid opening mechanism 60 is disposed at the front of the cap unit 3. The lid opening mechanism 60 has a lever portion 61 that is provided integrally with the locking member 42. The lever portion 61 is located rearward of the rotation shaft 47. As shown in Figures 6 to 8, the lever portion 61 rotates together with the locking member 42 around the rotation shaft 47 in the unlocking direction or the locking direction.

[0091] As shown in FIGS. 10 and 11, the lever portion 61 has a lever body 61a, a recessed portion 61b, and a push-up portion 61c. The lever body 61a is columnar or plate-shaped and extends rearward from the locking member 42. In this embodiment, the lever body 61a protrudes rearward from the rear upper end of the lock bearing portion 42c of the locking member 42.

[0092] The recess 61b is recessed downward from the upper surface of the lever main body 61a. In this embodiment, the recess 61b is a groove extending in the left-right direction. Both left-right ends of the recess 61b are open to both left-right end surfaces of the lever main body 61a. The recess 61b is located rearward and above the rotation shaft 47.

[0093] 3, the recess 61b is recessed in a direction away from a part of the front end of the lid body 20. More specifically, the recess 61b is recessed in a direction away from a corner (corresponding to the part) located at the connection between the lower surface of the lock receiving portion 45 and the pushed-up surface 20e of the front lower end of the lid peripheral wall portion 20a of the lid body 20, i.e., downward.

[0094] 6 and 7, when the lever portion 61 is rotated in the unlocking direction around the rotation axis 47 together with the locking member 42 with the lid body 20 in the closed position, the recess 61b accommodates the corner portion of the front lower end portion of the lid peripheral wall portion 20a so as not to come into contact with the lever portion 61. More specifically, when the lever portion 61 is rotated in the unlocking direction around the lock hinge central axis A2, the corner portion (part thereof) is inserted into the recess 61b, but the corner portion does not come into contact. In other words, the recess 61b is configured to be able to receive a part of the front end portion of the lid body 20 without contacting it.

[0095] 10 and 11, the push-up portion 61c protrudes at least upward from the lever main body 61a. In this embodiment, the push-up portion 61c protrudes upward and rearward (diagonally upward) from the rear end of the lever main body 61a. However, this is not limiting, and although not particularly shown, the push-up portion 61c may protrude straight (upright) in the vertical direction from the lever main body 61a upward.

[0096] In this embodiment, the push-up portion 61c is a rib-like protrusion extending in the left-right direction. The push-up portion 61c is disposed adjacent to the recess 61b on the rear side thereof. As shown in FIG. 3, the push-up portion 61c faces the pushed-up surface 20e of the lid 20.

[0097] At least a portion of push-up portion 61c is arranged to overlap the front end of lid body 20 when viewed from above. Specifically, in this embodiment, at least the front portion of push-up portion 61c is arranged to overlap the front end of lid peripheral wall portion 20a (particularly pushed-up surface 20e) when viewed from above. When lever portion 61 is rotated together with locking member 42 around rotation shaft 47 in the unlocking direction, push-up portion 61c can come into contact with pushed-up surface 20e.

[0098] Specifically, when the user releases the engagement between the ring stopper 44 and the stopper receiving portion 46 from the closed position of the lid body 20 shown in FIG. 3 and pushes the second extension portion 42b of the locking member 42 rearward, the hook portion 48 is first released from the engagement with the lock receiving portion 45, as shown in FIG. 6. Specifically, the state in which the locking member 42 is not pushed in as shown in FIG. 3 is defined as 0° (a reference angle when the lever portion 61 is horizontal; hereinafter, referred to as the reference angle). The angle at which the engagement between the lock receiving portion 45 and the hook portion 48 is released as shown in FIG. 6 (the rotation angle from the reference angle about the lock hinge central axis A2) is, for example, 10° or less, and in this embodiment, is approximately 8°. If the internal pressure of the container body 2 is reduced at this time, the lid gasket 21 may stick to the liquid passage hole 11, preventing the lid body 20 from opening.

[0099] In this case, when the user further pushes the second extension portion 42b of the locking member 42 rearward, the push-up portion 61c comes into contact with the pushed-up surface 20e as shown in Fig. 7, and then, as shown in Fig. 8, the push-up portion 61c pushes the pushed-up surface 20e upward. This makes it possible to forcibly open the lid 20 (unplug the liquid passage port 11). More specifically, as shown in Fig. 7, the angle at which the push-up portion 61c comes into contact with the pushed-up surface 20e (lid 20) (the angle of rotation from the reference angle about the lock hinge central axis A2) is, for example, 15° or less and is larger than the angle at which the engagement between the lock receiving portion 45 and the hook portion 48 is released, and is approximately 10° in the example of this embodiment. 8, the angle at which the push-up portion 61c pushes up the pushed-up surface 20e (lid body 20) (the angle of rotation from a reference angle about the lock hinge central axis A2) is, for example, 25° or less, and although this depends on the state of reduced pressure inside the container body 2, in the example of this embodiment, the lid gasket 21 separates from the liquid passage port 11 and the liquid passage port 11 is opened at approximately 13 to 18°. In this way, the push-up portion 61c is configured to be able to push up the lid body 20 by rotating the lever portion 61.

[0100] That is, the locking member 42 can rotate further in the unlocking direction from a state in which the locking member 42 rotates around the rotation shaft 47 in the unlocking direction and the push-up portion 61c comes into contact with the lid body 20. In other words, the locking member 42 can rotate in the unlocking direction from a state in which the push-up portion 61c comes into contact with the lid body 20 to a position where the lid body 20 opens the liquid passage port 11, and can push up the lid body 20. The surface of the push-up portion 61c that faces the pushed-up surface 20e is convexly curved, so that the push-up portion 61c and the pushed-up surface 20e are in point contact or line contact with each other.

[0101] 6 and 7, the push-up portion 61c is configured to come into contact with the cover 20 when the locking member 42 rotates around the rotation shaft 47 in the unlocking direction and the locking member 42 is first released from engagement with the cover 20. That is, the push-up portion 61c comes into contact with the pushed-up surface 20e after the hook portion 48 is released from engagement with the lock receiving portion 45. In other words, the push-up portion 61c does not come into contact with the pushed-up surface 20e until the hook portion 48 is released from engagement with the lock receiving portion 45.

[0102] In this embodiment, when the lid locking mechanism 40 is operated to release the lid 20 from its locked state, the lever 61 rotates around the pivot shaft 47 and pushes up the lid 20 from the bottom, which is in the closed position. In other words, when the lid opening mechanism 60 is operated to release the lid 20 from its locked state, the lid opening mechanism 60 can push up the lid 20 from the closed position and open the liquid passage port 11.

[0103] Furthermore, the lid body 20, which has been opened as shown in Figure 9, can be rotated in the opposite direction to the opening direction (closing direction) against the biasing force of the torsion spring in the hinge 31, and the hook portion 48 of the locking member 42 will engage with the lock receiving portion 45, so that the lid body 20 will once again be in a state where it blocks the top of the cap body 10, i.e., the lid body 20 will be in the closed position.

[0104] According to the cap unit 3 and capped container 1 of the present embodiment described above, the following effects can be obtained. For example, if the pressure inside the container body 2 decreases as the contents, such as a hot beverage, cools, the lid gasket 21 of the lid 20 may stick to the liquid passage 11, preventing the lid 20 from opening even when the locked state between the locking member 42 and the lid 20 is released. Even in such a case, in this embodiment, since the lid opening mechanism 60 has the lever portion 61, when the user pushes the second extension portion 42b of the locking member 42 rearward, the lever portion 61 rotates together with the locking member 42 in the unlocking direction around the pivot shaft 47, and the push-up portion 61c of the lever portion 61 pushes up the lid 20 from the closed position. This allows the lid 20 to be reliably opened and the liquid passage 11 to be released.

[0105] That is, the lid 20 can be released and reliably opened by a single operation (one action) to release the lock of the lid lock mechanism 40. Furthermore, the lid opening mechanism 60 can be simply configured.

[0106] In this embodiment, the push-up portion 61c of the lever portion 61 protrudes at least upward from the lever body 61a and pushes up the lid body 20 as the lever portion 61 rotates. Therefore, when a user pushes the second extension portion 42b of the locking member 42 rearward and rotates the lever portion 61 together with the locking member 42 around the rotation axis 47, the push-up portion 61c reliably comes into contact with the lid body 20. Specifically, by appropriately setting the protruding shape and protruding amount of the push-up portion 61c, it is possible to avoid contact between the lid body 20 and the lever portion 61 until the locking member 42 is released from the lid body 20, and after the locking member 42 is released from the lid body 20, the push-up portion 61c can be actively brought into contact with the lid body 20 to push up the lid body 20. Furthermore, because the push-up portion 61c protrudes upward, it is easy to ensure a large push-up dimension (push-up amount) for pushing up the lid body 20, so the push-up portion 61c can reliably push up and open the lid body 20.

[0107] More specifically, if the lever portion 61 hits the lid body 20 before the hook portion 48 of the locking member 42 is disengaged from the lock receiving portion 45 of the lid body 20, the area near the lock receiving portion 45 at the front end of the lid body 20 may become pinched between the hook portion 48 and the lever portion 61, making it impossible to open the lid body 20. This problem can be avoided by providing a protruding push-up portion 61c on the lever portion 61 as in this embodiment.

[0108] Furthermore, by having the push-up portion 61c protrude upward from the lever body 61a, the overall length of the lever portion 61 in the front-to-rear direction can be kept short. Because the overall length of the lever portion 61 is kept short, the drinking spout portion 13d of the spout-forming member 13 can be positioned further forward, improving the ease of drinking (usability) for the user when drinking a beverage. Furthermore, the space inside the cap unit 3 can be effectively utilized, contributing to the miniaturization of the cap unit 3 (capped container 1), and as a result, the aesthetic appeal of the exterior design can be improved.

[0109] As described above, with the cap unit 3 and capped container 1 of this embodiment, the lid body 20 can be reliably opened even when the pressure inside the container body 2 is reduced, and the usability is improved and the aesthetic appearance of the exterior design is also improved.

[0110] In addition, in this embodiment, the user pushes in the second extension portion 42b of the locking member 42 and rotates it in the unlocking direction, and from the state in which the locking member 42 is released from the lid body 20, the push-up portion 61c is brought into contact with (becomes able to come into contact with) the lid body 20. Therefore, when the pressure inside the container body 2 is not reduced, the lid body 20 opens due to the biasing force of the torsion spring (biasing portion) when the locking member 42 is released from the lid body 20, thereby opening the liquid passage port 11. On the other hand, when the pressure inside the container body 2 is reduced, the lid body 20 sticks to the liquid passage port 11 when the locking member 42 is released from the lid body 20, and does not open due to the biasing force alone, but the push-up portion 61c further pushes up the lid body 20, opening the lid body 20 and opening the liquid passage port 11.

[0111] That is, because the push-up portion 61c is configured to push up the lid body 20 only when the pressure inside the container body 2 is reduced, wear and tear on the push-up portion 61c is suppressed and the function of the lever portion 61 (lid opening mechanism 60) is maintained well for a long period of time. Furthermore, when the pressure inside the container body 2 is not reduced, the push-up portion 61c opens the lid body 20 without coming into contact with the lid body 20, so the user does not feel any unnecessary resistance to operation.

[0112] In this embodiment, the push-up portion 61c of the lever 61 contacts the pushed-up surface 20e of the lid 20. The pushed-up surface 20e is an inclined surface that slopes upward toward the rear. This inclined surface 20e ensures a large contact area along which the push-up portion 61c, which rotates around the rotation shaft 47, slides. Therefore, the push-up portion 61c slides against the pushed-up surface 20e as it rotates, pushing up the lid 20, thereby further stabilizing the lifting function of the lid 20. Furthermore, the inclined pushed-up surface 20e makes it easier to position the push-up portion 61c opposite the pushed-up surface 20e. Furthermore, since it is easier to provide effective free space around the lever 61, it is possible to increase the degree of freedom in the shape of the push-up portion 61c and further reduce the size of the cap unit 3.

[0113] In this embodiment, the locking member 42 rotates in the unlocking direction, and from a state in which the push-up portion 61c contacts the lid body 20, the locking member 42 can further rotate in the unlocking direction. In other words, by rotating the locking member 42 in the unlocking direction, the push-up portion 61c presses up the lid body 20 from a state in which it contacts the lid body 20 to a position where the lid body 20 opens the liquid passage port 11. In this case, when the user further pushes in the locking member 42 from the state in which the pushing-up portion 61c is in contact with the lid body 20, the lever portion 61 (lid opening mechanism 60) reliably pushes up the lid body 20, allowing the lid body 20 to be opened stably.

[0114] Furthermore, in this embodiment, lever portion 61 has recessed portion 61b. When a user pushes second extension portion 42b of locking member 42 rearward to open lid body 20, lever portion 61 rotates in the unlocking direction together with locking member 42, and at this time, a part of the front end portion of lid body 20 is received (housed) without coming into contact with recessed portion 61b. Therefore, contact between lid body 20 and lever portion 61 can be more reliably prevented until the locking of locking member 42 with lid body 20 is released.

[0115] More specifically, if the lever portion 61 hits the lid body 20 before the hook portion 48 of the locking member 42 is disengaged from the lock receiving portion 45 of the lid body 20, the area of ​​the front end portion of the lid body 20 near the lock receiving portion 45 will be pinched between the hook portion 48 and the lever portion 61, preventing the lid body 20 from opening. This type of problem can be avoided by providing a recess 61b in the lever portion 61 as in this embodiment.

[0116] Furthermore, by providing the recess 61b in the lever portion 61, it is possible to secure a large rotation range (movable range) for rotating the locking member 42 around the rotation shaft 47 while keeping the length (vertical dimension) of the first extension portion 42a of the locking member 42 small. Because the rotation range of the locking member 42 is large, it is possible to secure a large hooking dimension (hooking allowance) between the hook portion 48 and the lock receiving portion 45. This makes it possible to prevent problems such as the lock being unintentionally released and the lid 20 opening due to, for example, an impact from outside the container.

[0117] Furthermore, when the lid 20 is rotated from the open position to the closed position and the lid locking mechanism 40 holds the lid 20 in a fixed state, the lid 20 is pushed down from above. At this time, the lid gasket 21 elastically deforms as it abuts against the bottom wall 13a of the opening-forming member 13, and depending on the amount of pushing, the bottom end of the lid 20 may abut against the lever 61 of the locking member 42. This problem can be avoided by providing a recess 61b in the lever 61 as in this embodiment.

[0118] Furthermore, because the length of the first extension 42a is kept short, problems such as the locking member 42 coming into contact with the lips, chin, etc., and becoming an obstacle when the user drinks the contents are reduced. Furthermore, because the length of the first extension 42a is kept short, the aesthetic appeal of the exterior design of the container is improved.

[0119] In this embodiment, the recess 61b of the lever portion 61 is recessed downward from the upper surface of the lever body 61a. The recess 61b can achieve the above-mentioned excellent effects while having a simple configuration.

[0120] In this embodiment, at least a portion of the push-up portion 61c is disposed so as to overlap the front end portion of the lid body 20 when viewed from above. In this case, at least a portion of the push-up portion 61c is positioned directly below the front end of the lid 20, thereby further reducing the amount of rearward protrusion of the lever portion 61 from the locking member 42. In other words, the overall length of the lever portion 61 in the front-to-rear direction is reduced, which allows the drinking spout 13d of the spout-forming member 13 to be positioned further forward, improving the ease of drinking (usability) for the user. Furthermore, the space inside the cap unit 3 is effectively utilized, contributing to the miniaturization of the cap unit 3 (capped container 1).

[0121] Furthermore, in this embodiment, the state in which the second extension portion 42b of the locking member 42 is not pushed in as shown in FIG. 3 is defined as 0° (reference angle), and the angle at which the locked state between the lock receiving portion 45 and the hook portion 48 is released (the rotation angle from the reference angle about the lock hinge central axis A2) is 10° or less as shown in FIG. 6, the angle at which the push-up portion 61c and the pushed-up surface 20e (the cover body 20) contact as shown in FIG. 7 (the rotation angle from the reference angle about the lock hinge central axis A2) is greater than the angle at which the locked state between the lock receiving portion 45 and the hook portion 48 is released and is 15° or less, and the angle at which the push-up portion 61c pushes up the pushed-up surface 20e (the cover body 20) to open the liquid passage port 11 as shown in FIG. 8 (the rotation angle from the reference angle about the lock hinge central axis A2) is 25° or less. In this case, the liquid passage port 11 can be reliably opened while keeping the amount of pressing of the locking member 42 small, and operability is good.

[0122] The present invention is not limited to the above-described embodiment, and the configuration can be changed within the scope of the present invention, as will be described below.

[0123] In the above-described embodiment, an example was given in which the pushed-up surface 20e of the lid 20 is flat and the portion of the push-up portion 61c of the lever 61 that faces the pushed-up surface 20e is convexly curved, but this is not limiting. For example, the pushed-up surface 20e may be convexly curved and the portion of the push-up portion 61c that faces the pushed-up surface 20e may be flat. Alternatively, both the pushed-up surface 20e and the portion of the push-up portion 61c that faces the pushed-up surface 20e may be convexly curved, etc.

[0124] In the above-described embodiment, an example was given in which the recess 61b of the lever portion 61 is a groove extending in the left-right direction, but this is not limited thereto. The recess 61b may be, for example, a hole. Furthermore, the upper surface of the lever body 61a of the lever portion 61 may be flat without the recess 61b. In other words, when the locking member 42 rotates in the unlocking direction, it is only necessary that other portions of the lever body 61a do not come into contact with the pushed-up surface 20e before the push-up portion 61c of the lever portion 61 comes into contact with the pushed-up surface 20e.

[0125] In the above embodiment, the present invention is applied to a capped container 1 having a heat and cold insulation function provided by a container body 2 with a vacuum insulation structure, but the present invention is not limited to this. That is, the present invention can be widely applied to capped containers in which a cap unit is detachably attached to the mouth and neck portion of the container body.

[0126] The present invention may be combined with the various configurations described in the above-described embodiments and modifications, and may also include additions, omissions, substitutions, and other modifications of the configurations, without departing from the spirit of the present invention. Furthermore, the present invention is not limited to the above-described embodiments, but is limited only by the claims. [Explanation of symbols]

[0127] 1...container with cap, 2...container body, 2c...mouth and neck portion, 3...cap unit, 10...cap body, 11...liquid passage hole, 20...lid body, 20e...push-up surface, 31...hinge, 35...watertight packing, 40...lid lock mechanism, 42...lock member, 47...rotating shaft, 60...lid opening mechanism, 61...lever portion, 61a...lever body, 61b...recess, 61c...push-up portion

Claims

1. A cap unit that can be detachably attached to a container body having an open top, a cap body attached to the neck of the container body and having a liquid passage opening that connects the inside and outside of the container body; a lid body that is rotatably attached to the cap body via a hinge and that releasably closes the liquid passage port when biased in an opening direction around the hinge; a waterproof packing that seals the gap between the cap body and the container body; a lid locking mechanism that fixes the lid body to the cap body when the lid body is in a closing position where the lid body closes the liquid passage hole; a lid opening mechanism that, in response to an operation to release the fixed state of the lid body by the lid locking mechanism, pushes up the lid body in the closed position to open the liquid passage port, The lid locking mechanism is a locking member that is engaged with the lid to fix the lid in the closed position; a rotation shaft that rotatably supports the locking member, the cover opening mechanism has a lever portion that is integral with the locking member, the lever portion is located rearward of the rotation shaft and is rotated together with the locking member in an unlocking direction about the rotation shaft, The lever portion is a cap unit having a lever main body extending rearward from the locking member, and a push-up portion protruding at least upward from the lever main body and capable of pushing up the lid body by rotating the lever portion.

2. The locking member is rotated in the unlocking direction, and the push-up portion is configured to come into contact with the lid when the locking member is released from engagement with the lid. The cap unit according to claim 1 .

3. the lid body has a pushed-up surface with which the push-up portion comes into contact, The pushed-up surface is an inclined surface that slopes upward as it approaches the rear side. The cap unit according to claim 1 .

4. When the locking member rotates in the unlocking direction, the push-up portion pushes up the lid body from a state in which the push-up portion contacts the lid body to a position where the lid body opens the liquid passage port. The cap unit according to claim 1 .

5. the locking member is rotated in the unlocking direction, and from a state in which the push-up portion is in contact with the lid body, the locking member is further rotated in the unlocking direction; The cap unit according to claim 1 .

6. the lever portion has a recess recessed in a direction away from a part of the front end portion of the lid body, When the lever portion rotates, the part is inserted into the recessed portion, but the part does not come into contact with the recessed portion. The cap unit according to claim 1 .

7. The cap unit according to any one of claims 1 to 6, A capped container comprising: the container body to which the cap unit is attached.

Images