Cap unit and beverage container

Abstract

To provide a cap unit and a beverage container which can satisfactorily maintain a lock state of a lid body even when an impact is given thereto by falling.SOLUTION: A cap unit includes a cap body 10 having a liquid passing port for communicating the inside and the outside of a container body, a lid body 20 which is arranged above the cap body 10 and covers the liquid passing port, a hinge 30 for rotatably connecting the lid body 20 to the cap body 10, and a lid lock mechanism 50 for fixing the lid body 20 to the cap body 10 at a block position, wherein the lid lock mechanism 50 has an engaged part provided on one of the cap body 10 and the lid body 20, and an engagement part which is provided on the other of the cap body 10 and the lid body 20 and is engaged with the engaged part from a front side, the cap body 10 has a contacted part 19, and the lid body 20 has a contact part 23 contacting the contacted part 19 from the rear side when the lid body 20 is displaced to the front side.SELECTED DRAWING: Figure 5

Description

[Technical field]

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

[0002] A conventional cap unit is known, for example, from Patent Document 1. The cap unit includes a cap body that closes the upper opening of the container body and has a liquid passage port that communicates the inside and outside of the container body, a lid that is rotatably connected to the cap body via a hinge and opens and closes the liquid passage port, and a locking means that fixes (locks) the lid in a closed position relative to the cap body. The hinge connects the rear end of the cap body to the rear end of the lid, and the locking means fixes the front end of the cap body to the front end of the lid. In Patent Document 1, the lid is biased in an opening direction around the hinge by an elastic member that closes the air hole. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 3937428 Summary of the Invention [Problem to be solved by the invention]

[0004] When a beverage container equipped with this type of cap unit receives an impact from the hinge side (rear side) due to being dropped, for example, the lid may be displaced forward. This displacement may cause the lid to be unintentionally released from the locked state of the locking means, causing the lid to open and the beverage to leak out of the container.

[0005] An object of the present invention is to provide a cap unit and a beverage container that can maintain the lid body in a locked state even if the lid body is subjected to an impact due to being dropped or the like. [Means for solving the problem]

[0006] One aspect of the present invention is a cap unit to be attached to a container body having an open top, the cap unit comprising: a cap body that closes the top opening of the container body and has a liquid passage port that communicates between the inside and outside of the container body; a lid body that is arranged on the upper side of the cap body and covers the liquid passage port; a hinge that rotatably connects the lid body to the cap body; and a lid locking mechanism that fixes the lid body in a closed position relative to the cap body, the hinge being arranged at the rear of the cap unit and the lid locking mechanism being arranged at the front of the cap unit. ,before Record On the body The cap body is provided with a locking portion. On the body and a locking portion that is locked to the locked portion from the front side, the cap body has an abutting portion, and the lid body has an abutting portion that abuts against the abutting portion from the rear side when the lid body is displaced forward. The lid locking mechanism has a locking member on which the engaging portion is disposed, and in a locked state in which the lid body is fixed in the closed position by the lid locking mechanism, the front-to-rear dimension between the abutted portion and the abutting portion is smaller than the front-to-rear clearance dimension between the locking member and the lid body. Also, one aspect of the present invention is a cap unit to be attached to a container body having an open top, the cap unit comprising: a cap body that closes the top opening of the container body and has a liquid passage port that communicates between the inside and the outside of the container body; a lid body that is arranged on the upper side of the cap body and covers the liquid passage port; a hinge that rotatably connects the lid body to the cap body; and a lid lock mechanism that fixes the lid body in a closed position relative to the cap body, the hinge being arranged at the rear of the cap unit, the lid lock mechanism being arranged at the front of the cap unit, and the lid lock mechanism being arranged at the front of the cap unit. The locking mechanism has an engaged portion provided on the cap body and a locking portion provided on the lid body that engages with the engaged portion from the front side, the cap body has an abutted portion, and the lid body has an abutting portion that abuts against the abutted portion from the rear side when the lid body is displaced forward, the lid locking mechanism has a locking member on which the engaged portion is positioned, and in a locked state in which the lid body is fixed in the closed position by the lid locking mechanism, the front-to-rear dimension between the abutted portion and the abutting portion is smaller than the front-to-rear engagement dimension between the engaged portion and the locking portion.

[0009] In the above cap unit, it is preferable that the cap body has a first bearing portion extending along the hinge central axis of the hinge, the cover body has a second bearing portion arranged coaxially with the first bearing portion, the hinge has a hinge axis that supports the first bearing portion and the second bearing portion so as to be freely rotatable around the hinge central axis, the cap body has an opposing wall portion that faces the second bearing portion from the front, the abutted portion is the opposing wall portion, and the abutting portion is the second bearing portion.

[0010] In the above cap unit, it is preferable that a pair of the abutted portion and the abutting portion is provided on both sides in the left and right direction about a central axis of the cap unit.

[0011] Moreover, one aspect of the beverage container of the present invention comprises the above-mentioned cap unit and the container body to which the cap unit is attached. Effect of the Invention

[0013] According to the cap unit and beverage container of one aspect of the present invention, the locked state of the lid can be maintained satisfactorily even if the container is subjected to an impact due to being dropped or the like. [Brief description of the drawings]

[0014] [Figure 1] FIG. 1 is a perspective view showing a beverage container according to a first embodiment of the present invention. [Diagram 2] FIG. 2 is a cross-sectional view showing a beverage container. [Diagram 3] FIG. 3 is a cross-sectional view showing a portion of the beverage container with the lid in a closed state (closed position). [Figure 4] FIG. 4 is a perspective view showing a portion of the beverage container with the lid in an open state (open position). [Diagram 5] FIG. 5 is a cross-sectional view showing a cap unit, and more specifically, the cross-sectional position is different in the left-right direction from that in FIG. 3, and the watertight packing is omitted. [Figure 6] FIG. 6 is a perspective view showing a portion of a beverage container according to a second embodiment of the present invention, with the lid in an open state. [Figure 7] FIG. 7 is a cross-sectional perspective view showing a portion of the beverage container with the lid in a closed state. [Figure 8] FIG. 8 is a perspective view showing a portion of a beverage container according to a third embodiment of the present invention with the lid in an open state. [Figure 9] FIG. 9 is a side view showing a portion of the beverage container with the lid in a closed state. [Figure 10] FIG. 10 is a cross-sectional perspective view showing a modified example of the lid locking mechanism. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] First Embodiment A cap unit 1A according to a first embodiment of the present invention and a beverage container 100 including the same will be described with reference to Figures 1 to 5. In the following description, the cap unit 1A may be simply referred to as a cap, and the beverage container 100 may be simply referred to as a container.

[0016] 1 and 2, a beverage container 100 of this embodiment includes a cap unit 1A and a cylindrical container body 2 with a bottom to which the cap unit 1A is detachably attached. The cap unit 1A includes a cylindrical cap body 10 having a top wall (ceiling wall), a cylindrical lid body 20 with a top, a first hinge (hinge) 30 that rotatably connects the lid body 20 to the cap body 10, a biasing portion 60, a watertight packing 40 that seals the gap between the container body 2 and the cap body 10, and a lid locking mechanism 50. The cap unit 1A and the container body 2 are arranged coaxially with each other about a central axis C.

[0017] In this embodiment, the direction in which the central axis C extends is referred to as the up-down direction. In the up-down direction, the direction from the bottom surface 2a of the container body 2 to the lid top wall 20a of the lid body 20 is referred to as the upper side, and the direction from the lid top wall 20a 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. Of the radial directions, 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. The direction going around the central axis C is called the circumferential direction.

[0018] Among the radial directions, a direction passing through the first hinge 30 and the central axis C is referred to as a front-rear direction. Among the front-rear directions, a direction from the first hinge 30 toward the central axis C is referred to as a front side, and a direction from the central axis C toward the first hinge 30 is referred to as a rear side. In addition, the radial direction perpendicular to the front-rear direction is called the left-right direction. When the beverage container 100 is in an upright position with the lid top wall 20a of the lid body 20 facing vertically upward as shown in Fig. 2, the direction toward the left in the left-right direction is called the left side, and the direction toward the right is called the right side when viewed from the front. Although not specifically shown, the position (state) of the beverage container 100 in which the lid top wall 20a of the lid body 20 faces vertically downward is called the inverted position.

[0019] The central axis C may be referred to as a cap central axis C or a container central axis C, in order to distinguish it from a nozzle central axis and a hinge central axis A, which will be described later.

[0020] 3 and 4, the hinge central axis A of the first hinge 30 extends in the left-right direction. The hinge central axis A is disposed rearward of the central axis C. The central axis C and the hinge central axis A are in skewed positions relative to each other. The direction perpendicular to the hinge central axis A is called the hinge radial direction. Within the hinge radial direction, the direction approaching the hinge central axis A is called the inner hinge radial direction, and the direction away from the hinge central axis A is called the outer hinge radial direction. The direction going around the hinge central axis A is called the hinge circumferential direction.

[0021] 2, the beverage container 100 is capable of keeping a beverage (liquid content, liquid) contained in the container body 2 hot or cold by the container body 2 having a vacuum insulation structure. The container body 2 is a cylindrical shape with an open top and a closed bottom. Note that the container body 2 may contain contents other than a beverage.

[0022] Specifically, the container body 2 has a bottomed cylindrical outer container 4 and an inner container 5 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 5 housed inside the outer container 4.

[0023] 3, the upper cylindrical end portion of the inner container 5 is fitted into the upper cylindrical end portion of the outer container 4, and the upper cylindrical end portions are welded to each other in this fitted state. As a result, the upper opening 2d of the container body 2 has a pointed shape known as a "bowing welded structure."

[0024] In addition, a vacuum insulation layer 6 is provided between the outer container 4 and the inner container 5. The vacuum insulation layer 6 can be formed, for example, by blocking a 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.

[0025] As shown in Figures 1 and 2, the container body 2 has a substantially disk-shaped bottom portion 2a, a substantially cylindrical body portion 2b whose lower end is connected to the outer periphery of the bottom portion 2a, a substantially cylindrical mouth / neck portion 2c that is arranged above the body portion 2b and has a smaller diameter than the body portion 2b, and a shoulder portion 2e that is substantially tapered and has a smaller diameter as it extends upward, connecting the upper end of the body portion 2b to the lower end of the mouth / neck portion 2c.

[0026] As shown in Fig. 3, the inner periphery of the mouth-neck part 2c is smaller in diameter than the inner periphery of the body part 2b. The outer periphery of the mouth-neck part 2c is provided with a male thread part 7. The upper end part of the mouth-neck part 2c opens in a circular shape as the upper opening part 2d of the container body 2.

[0027] Although the beverage container 100 of this embodiment has a generally cylindrical external shape as shown in Fig. 1, the external shape of the beverage container 100 is not particularly limited and can be appropriately changed according to 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.

[0028] As shown in FIG. 3, the cap unit 1A is attached to the mouth / neck portion 2c of the container body 2 and constitutes a plug for closing the upper opening 2d of the container body 2.

[0029] The cap body 10 is a member that closes the upper opening 2d of the container body 2, and is made of a heat-resistant resin such as polypropylene (PP). 3 to 5, the cap body 10 has a top wall portion 10a, a peripheral wall portion 10b, a cylindrical portion 14, a first bearing portion 18, and an opposing wall portion (contact portion) 19. Note that Fig. 3 and Fig. 5 show a cross section (longitudinal cross section) parallel to a central axis C of the cap unit 1A, and in detail, Fig. 3 shows a vertical cross section perpendicular to the left-right direction and including the central axis C, and Fig. 5 shows a vertical cross section perpendicular to the left-right direction and at a different left-right position from Fig. 3 (a vertical cross section at a position shifted to the right from the central axis C).

[0030] The top wall portion 10a covers the upper opening 2d of the container body 2 from above. The top wall portion 10a is in the shape of a substantially circular ring plate. The top wall portion 10a has a nozzle portion 11 that protrudes upward from the top wall portion 10a. The nozzle portion 11 is in the shape of a cylinder that extends in the vertical direction, and its nozzle central axis (not shown) is located forward of the central axis C of the container.

[0031] The nozzle portion 11 has a liquid passage port 12 therein. That is, the cap body 10 has the liquid passage port 12. The liquid passage port 12 passes through the top wall portion 10a in the vertical direction to communicate between the inside and the outside of the container body 2. That is, the liquid passage port 12 extends in the vertical direction inside the nozzle portion 11 and opens at the upper end and the lower end of the nozzle portion 11, respectively.

[0032] The top wall portion 10a also has an air vent 13 that penetrates the top wall portion 10a in the vertical direction to communicate between the inside and the outside of the container body 2. In other words, the cap body 10 has an air vent 13. The air vent 13 is disposed between the nozzle portion 11 (liquid passage port 12) and the first hinge 30 in the front-rear direction. In this embodiment, the air vent 13 is a circular hole, and is located rearward of the central axis C of the container.

[0033] 3, the liquid passage port 12 and the air vent hole 13 are covered by the cover body 20. When the cover body 20 is in an open state as shown in FIG. 4, the liquid passage port 12 and the air vent hole 13 are open toward the upper side.

[0034] As shown in Fig. 3, the peripheral wall portion 10b is tubular and extends downward from the outer periphery of the top wall portion 10a. The peripheral wall portion 10b surrounds the mouth / neck portion 2c from the radially outer side over the entire circumferential direction. The lower end of the peripheral wall portion 10b faces or contacts the shoulder portion 2e from above with a gap therebetween. The peripheral wall portion 10b is substantially cylindrical and extends vertically so as to be continuous with the trunk portion 2b of the container body 2.

[0035] The peripheral wall portion 10b has an internal thread portion 15 on its inner peripheral surface. The internal thread portion 15 is screwed into the external thread portion 7 of the mouth-neck portion 2c. In other words, the cap body 10 is detachably attached to the outside of the mouth-neck portion 2c by screwing, with the cap body 10 covering the upper opening 2d of the container body 2.

[0036] The tubular portion 14 is cylindrical about the central axis C and extends downward from the top wall portion 10a. When viewed from below, the tubular portion 14 has an annular shape surrounding the liquid passage port 12. Specifically, when viewed from below, the tubular portion 14 surrounds the liquid passage port 12 from the radial outside over the entire circumferential direction. The tubular portion 14 is inserted into the mouth neck portion 2c.

[0037] 3 and 4, the first bearing portion 18 is disposed at the upper end and rear end of the cap body 10. Specifically, the first bearing portion 18 is disposed at the center in the left-right direction and at the rear end of the top wall portion 10a. The first bearing portion 18 protrudes upward and rearward from the top wall portion 10a. The first bearing portion 18 is substantially cylindrical and extends along the hinge center axis A of the first hinge 30.

[0038] The first bearing portion 18 has a bearing cylinder portion 18a and a connecting wall portion 18b. The bearing cylinder portion 18a has a cylindrical shape centered on the hinge central axis A and extends in the left-right direction. The bearing cylinder portion 18a is a main body portion of the first bearing portion 18, and may therefore be referred to as the main body portion 18a. The connecting wall portion 18b connects the bearing cylinder portion 18a and the top wall portion 10a. Specifically, the connecting wall portion 18b connects the lower portion of the outer circumferential surface of the bearing cylinder portion 18a and the rear end portion of the upper surface of the top wall portion 10a. Note that the connecting wall portion 18b is a root portion of the first bearing portion 18, and therefore may be referred to as the root portion 18b.

[0039] 4 and 5, the facing wall portion 19 is disposed at the upper end and rear end of the cap body 10. Specifically, the facing wall portion 19 is disposed at the rear end of the top wall portion 10a, and is rib-shaped so as to protrude upward from the top wall portion 10a and extend in the left-right direction. The facing wall portion 19 is disposed between the air vent 13 and the first hinge 30 in the front-rear direction. The facing wall portion 19 is disposed alongside the connection wall portion 18b of the first bearing portion 18 in the left-right direction.

[0040] The opposing wall portion 19 has a rear surface 19a facing the rear side. In this embodiment, the rear surface 19a is an inclined surface extending toward the rear as it approaches the lower side. Specifically, the rear surface 19a is a concave curved surface centered on the hinge central axis A. That is, in the vertical cross section shown in FIG. 5, the rear surface 19a is a concave arc centered on the hinge central axis A.

[0041] 4, in this embodiment, a pair of opposing walls 19 are provided spaced apart from each other in the left-right direction. The left (one) opposing wall portion 19 of the pair of opposing walls 19 is disposed adjacent to the left side of the connecting wall portion 18b of the first bearing portion 18. The right (other) opposing wall portion 19 of the pair of opposing walls 19 is disposed adjacent to the right side of the connecting wall portion 18b of the first bearing portion 18.

[0042] In this embodiment, the opposing wall portions 19 and the connection wall portion 18b of the first bearing portion 18 are connected to each other. Specifically, the left opposing wall portion 19 of the pair of opposing wall portions 19 has a right end portion connected to a left lower end portion of the connection wall portion 18b of the first bearing portion 18. Moreover, the right opposing wall portion 19 of the pair of opposing wall portions 19 has a left end portion connected to a right lower end portion of the connection wall portion 18b of the first bearing portion 18.

[0043] 3, the lid body 20 is disposed on the upper side of the cap body 10. The lid body 20 is a member that covers the upper part of the cap body 10 and also covers the liquid passage port 12 and the air vent 13 in an openable and closable manner. The lid body 20 has a portion made of a heat-resistant resin such as polypropylene (PP) (for example, portions other than the liquid passage sealing portion 21, the air passage sealing portion 22, and the cover member 24 described below). As shown in FIGS. 3 to 5, the lid body 20 has a lid top wall portion 20a, a lid peripheral wall portion 20b, a liquid passage seal portion 21, an air passage seal portion 22, a second bearing portion (contact portion) 23, and a cover member 24.

[0044] The lid top wall portion 20a is disposed above the top wall portion 10a of the cap body 10. In this embodiment, the lid top wall portion 20a is a plate extending in the front-rear direction and inclines upward as it extends from the first hinge 30 toward the front side.

[0045] As shown in FIG. 3, the lid top wall portion 20a has a hole portion 20c that penetrates the lid top wall portion 20a in the vertical direction, and a support tube 20d that protrudes downward from the lid top wall portion 20a and is positioned between the hole portion 20c and the first hinge 30 in the front-to-rear direction.

[0046] The lid peripheral wall portion 20b is cylindrical and extends downward from the outer periphery of the lid top wall portion 20a. The lid peripheral wall portion 20b is disposed so as to surround the periphery of the top wall portion 10a of the cap body 10.

[0047] The liquid passage sealing part 21 is made of an elastic material such as heat-resistant rubber or elastomer, for example, silicone rubber. That is, the liquid passage sealing part 21 is elastically deformable. The liquid passage sealing part 21 is detachably attached to the lid top wall part 20a of the lid body 20. When the lid body 20 is in the closed state, the liquid passage sealing part 21 is in liquid-tight contact with the upper opening of the nozzle part 11. In this way, the liquid passage sealing part 21 releasably closes the liquid passage port 12 from above. The liquid passage sealing part 21 is a plug-shaped seal member that closes the liquid passage port 12 of the nozzle part 11.

[0048] The liquid seal 21 has an axis 21a that fits into the hole 20c, and a plug 21b that is connected to the lower end of the axis 21a and has a generally dome-like shape that protrudes downward. The liquid seal 21 is detachable from the hole 20c. Therefore, the lid 20 and the liquid seal 21 can be washed separately, and the space between the lid 20 and the liquid seal 21 can be kept hygienic.

[0049] 3, the plug portion 21b of the liquid passage sealing portion 21 abuts against the upper end opening edge of the nozzle portion 11, i.e., the periphery of the opening of the liquid passage port 12, and this plug portion 21b elastically deforms and comes into close contact with the periphery of the opening of the liquid passage port 12. This makes it possible for the liquid passage port 12 of the nozzle portion 11 to be closed by the liquid passage sealing portion 21.

[0050] The ventilation seal 22 is made of an elastic material such as heat-resistant rubber or elastomer, for example silicone rubber. That is, the ventilation seal 22 is elastically deformable. The ventilation seal 22 is detachably attached to the lid top wall 20a of the lid 20. When the lid 20 is in the closed state, the ventilation seal 22 comes into liquid-tight contact with the upper opening of the ventilation hole 13. In this way, the ventilation seal 22 closes the ventilation hole 13 from above in an openable manner. The ventilation seal 22 is a cylindrical seal member with a bottom that closes the ventilation hole 13.

[0051] The ventilation seal 22 is fitted onto the support tube 20d. The ventilation seal 22 is detachable from the support tube 20d. Therefore, the lid 20 and the ventilation seal 22 can be washed separately, and the space between the lid 20 and the ventilation seal 22 can be kept hygienic.

[0052] In this cap unit 1A, when the lid body 20 is in the closed position, the bottom of the ventilation seal part 22 abuts against the periphery of the opening of the ventilation hole 13, and while this bottom part elastically deforms, it comes into close contact with the periphery of the opening of the ventilation hole 13. This makes it possible to close the ventilation hole 13 with the ventilation seal part 22.

[0053] In this embodiment, the liquid passage seal portion 21 and the air passage seal portion 22 are integrally formed from a single member, which reduces the number of parts and prevents the loss of members during cleaning or the like.

[0054] 5, the second bearing portion 23 is disposed at the rear end of the lid body 20. Specifically, the second bearing portion 23 is disposed at the rear end of the lid top wall portion 20a and the rear end of the lid peripheral wall portion 20b, protrudes downward from the lid top wall portion 20a, and protrudes radially inward from the lid peripheral wall portion 20b.

[0055] 4, the second bearing portion 23 has a generally cylindrical shape extending along the hinge central axis A of the first hinge 30, and is disposed coaxially with the bearing cylinder portion 18a of the first bearing portion 18. The second bearing portion 23 is disposed side by side with the bearing cylinder portion 18a of the first bearing portion 18 in the left-right direction.

[0056] In this embodiment, a pair of second bearing portions 23 are provided spaced apart from each other in the left-right direction. The left (one) second bearing portion 23 of the pair of second bearing portions 23 is disposed adjacent to the left side of the bearing cylinder portion 18a of the first bearing portion 18. The right (other) second bearing portion 23 of the pair of second bearing portions 23 is disposed adjacent to the right side of the bearing cylinder portion 18a of the first bearing portion 18.

[0057] 5, the second bearing portion 23 faces the opposing wall portion 19 from the rear side. In other words, the opposing wall portion 19 faces the second bearing portion 23 from the front side. In this embodiment, a gap of dimension L1 in the front-rear direction is provided between the opposing wall portion 19 and the second bearing portion 23. More specifically, a gap of dimension L1 in the hinge radial direction, which is constant along the hinge circumferential direction, is provided between the rear surface 19a of the opposing wall portion 19 and the outer circumferential surface of the second bearing portion 23. When the cover 20 is displaced forward due to an impact such as being dropped, the second bearing portion 23 comes into contact with the opposing wall portion 19 from the rear side.

[0058] 4, the left (one) facing wall portion 19 of the pair of facing walls 19 faces the left (one) second bearing portion 23 of the pair of second bearing portions 23 from the front side. Also, the right (other) facing wall portion 19 of the pair of facing walls 19 faces the right (other) second bearing portion 23 of the pair of second bearing portions 23 from the front side. That is, in this embodiment, pairs of facing wall portion (abutted portion) 19 and second bearing portion (abutting portion) 23 that face each other are provided on both sides in the left-right direction centered on the central axis C of this cap unit 1A.

[0059] The cover member 24 is a substantially cylindrical or substantially annular plate-shaped member centered on the hinge central axis A (see FIG. 7). The cover member 24 is disposed adjacent to one of the pair of second bearing portions 23 in the left-right direction. The cover member 24 can be preferably made of a material different from that of the second bearing portion 23, such as polyacetal (POM) or acrylonitrile butadiene styrene (ABS), which has better wear resistance than the second bearing portion 23.

[0060] 4, in this embodiment, the cover member 24 is provided between the right (other) of the pair of second bearing portions 23 and the bearing cylinder portion 18a of the first bearing portion 18. The cover member 24 and the other second bearing portion 23 are engaged with each other in a state in which relative movement in the hinge circumferential direction is restricted. In addition, the cover member 24 and the bearing cylinder portion 18a are rotatable in the hinge circumferential direction, and specifically, are in slidable contact with each other.

[0061] As shown in Fig. 3, the first hinge 30 is disposed at the rear of this cap unit 1A. The first hinge 30 connects the upper rear end of the cap body 10 and the rear end of the lid body 20 so as to be relatively rotatable in the hinge circumferential direction. The lid body 20 is connected to the cap body 10 via the first hinge 30, and is thus rotatable between a position (closed position) in which the liquid passage port 12 and the air hole 13 shown in Fig. 3 are closed, and a position (open position) in which the liquid passage port 12 and the air hole 13 are opened, as shown in Fig. 4.

[0062] The first hinge 30 has a hinge shaft 31 that supports the first bearing portion 18 and the second bearing portion 23 so as to be rotatable around the hinge central axis A. The hinge shaft 31 is axially shaped extending in the left-right direction, and is inserted through the bearing cylinder portion 18a of the first bearing portion 18, the pair of second bearing portions 23, the cover member 24, and the biasing portion 60 (see FIG. 7). The hinge shaft 31 is, for example, a stainless steel shaft or pipe.

[0063] The biasing portion 60 biases the lid body 20 in the opening direction around the first hinge 30 (i.e., the hinge circumferential direction) relative to the cap body 10 (see FIG. 7). In this embodiment, the biasing portion 60 is provided inside the first hinge 30. The biasing portion 60 is a torsion coil spring that extends in a spiral shape around the hinge central axis A. In this embodiment, the biasing portion 60 is disposed across the inside of the bearing cylinder portion 18a of the first bearing portion 18 and the inside of the cover member 24, and biases the other second bearing portion 23 in the opening direction in the hinge circumferential direction relative to the first bearing portion 18 via the cover member 24, thereby biasing the lid body 20 in the opening direction. When the locked state by the lid lock mechanism 50 is released, the lid body 20 rotates around the first hinge 30 from the closed position to the open position.

[0064] As shown in Fig. 3, the waterproof gasket 40 is detachably attached to the inside of the cap body 10. The waterproof gasket 40 is a ring-shaped sealing member that seals (stops water) between the container body 2 and the cap body 10, and is made of an elastic member such as a heat-resistant rubber, elastomer, for example, silicone rubber. That is, the waterproof gasket 40 is elastically deformable. Specifically, the waterproof gasket 40 of this embodiment liquid-tightly seals the gap between the upper opening 2d of the container body 2 and the top wall portion 10a of the cap body 10. In FIG. 3, a part of the watertight gasket 40 is shown by a two-dot chain line (phantom line) as a shape before elastic deformation.

[0065] The watertight gasket 40 is attached to the cap body 10 in a state where it is fitted onto the cylindrical portion 14. Moreover, the watertight gasket 40 can be removed from the cylindrical portion 14. This allows the cap body 10 and the watertight gasket 40 to be washed separately, and the space between the cap body 10 and the watertight gasket 40 can be kept hygienic.

[0066] The watertight gasket 40 has a cylindrical gasket peripheral wall 41 that is fitted onto the cylindrical portion 14, an annular seal flange 42 that extends radially outward from the gasket peripheral wall 41 and seals the space between the upper opening 2d of the container body 2 and the top wall portion 10a of the cap body 10, and an extending flange portion 43 that extends radially inward from the lower end of the gasket peripheral wall 41.

[0067] The packing peripheral wall 41 extends in the vertical direction about the central axis C, and is fitted to the outside of the tubular portion 14. The inner peripheral surface of the packing peripheral wall 41 contacts the outer peripheral surface of the tubular portion 14. The lower end of the packing peripheral wall 41 protrudes downward beyond the lower end of the tubular portion 14.

[0068] The seal flange 42 has a substantially annular plate shape centered on the central axis C. The seal flange 42 protrudes radially outward from an upper end portion of the packing peripheral wall 41 and extends in the circumferential direction. 3, in this embodiment, the seal flange 42 has a groove portion 42a recessed radially inward from the outer circumferential surface of the seal flange 42 and extending circumferentially, and a pair of flange portions 42b disposed above and below the groove portion 42a. Therefore, the seal flange 42 has a cross-sectional shape (longitudinal cross-sectional shape) parallel to the central axis C that is generally C-shaped or generally U-shaped and opens radially outward.

[0069] Of the pair of flange portions 42b, the upper surface of the upper flange portion contacts the lower surface of the top wall portion 10a. In other words, the upper surface of the seal flange 42 contacts the lower surface of the top wall portion 10a. The thickness (plate thickness) of one of the pair of flange portions 42b is thinner than the thickness of the packing peripheral wall 41. The pair of flange portions 42b are particularly susceptible to elastic deformation among the watertight packing 40, and are designed to easily come into close contact with the upper opening 2d and the top wall portion 10a, respectively, thereby providing a stable seal between them.

[0070] The extending flange 43 is an annular plate centered on the central axis C. The extending flange 43 protrudes radially inward from the lower end of the packing peripheral wall 41 and extends in the circumferential direction. The extending flange 43 is disposed directly below the peripheral wall of the tubular portion 14. A gap is provided in the vertical direction between the upper surface of the extending flange 43 and the lower end surface of the tubular portion 14. For this reason, when assembling the watertight packing 40, the extending flange 43 is prevented from abutting against the lower end surface of the tubular portion 14 due to, for example, manufacturing errors of the components, and defects such as unstable adhesion between the seal flange 42 and the top wall portion 10a are suppressed.

[0071] As shown in Figures 1, 3 and 4, the lid locking mechanism 50 is disposed at the front of the cap unit 1A. The lid locking mechanism 50 fixes the lid 20 relative to the cap body 10 in the above-mentioned closed position (closed state) against the rotational biasing force in the opening direction about the first hinge 30 (hinge central axis A). The lid locking mechanism 50 fixes the front end of the cap body 10 and the front end of the lid 20. Note that Figures 1 and 3 show a state in which the lid 20 is fixed in the closed position by the lid locking mechanism 50 (locked state), and Figure 4 shows a state in which the fixation of the lid 20 by the lid locking mechanism 50 is released (unlocked state).

[0072] The lid lock mechanism 50 has a second hinge 55 whose hinge central axis (not shown) extends in the left-right direction, a locking member 52 rotatable about the hinge central axis of the second hinge 55, and a ring stopper (locking portion) 54 rotatable about the hinge central axis of the second hinge 55. The second hinge 55 also has an inner hinge portion 51 and outer hinge portions 53 located on both outer sides of the inner hinge portion 51 in the left-right direction. The inner hinge portion 51 and the outer hinge portion 53 are arranged coaxially with each other, with the hinge central axis of the second hinge 55 as a common axis.

[0073] The locking member 52 is rotatably (swingably) attached to the cap body 10 via an inner hinge portion 51. The ring stopper 54 is rotatably attached to the cap body 10 via an outer hinge portion 53. That is, the locking member 52 and the ring stopper 54 are each provided on the cap body 10.

[0074] The inner hinge portion 51 is provided on the front surface of the peripheral wall portion 10b of the cap body 10. The inner hinge portion 51 is disposed inside the outer hinge portion 53 in the left-right direction (i.e., on the central axis C side). The locking member 52 is supported by the inner hinge portion 51 so as to be rotatable in the front-rear direction. The locking member 52 has an upper arm portion 52a extending upward from the hinge central axis of the second hinge 55, and a lower arm portion 52b extending downward from the hinge central axis of the second hinge 55. A hook portion (locking portion) 56 is provided at the tip portion (upper end portion of the locking member 52) of the upper arm portion 52a so as to protrude toward the rear side. That is, the hook portion 56 is disposed on the locking member 52, and the hook portion 56 is provided on the cap body 10 via the locking member 52 and the inner hinge portion 51. A compression coil spring 57 is provided between the lower arm portion 52b and the peripheral wall portion 10b in a state compressed in the front-rear direction.

[0075] The outer hinge portion 53 is provided on the front surface of the peripheral wall portion 10b of the cap body 10. The ring stopper 54 is made of a curved, substantially C-shaped member, and both ends thereof are supported by the outer hinge portion 53 so as to be rotatable in the vertical direction.

[0076] The lid lock mechanism 50 also has a lock receiving portion (engaged portion) 58 to which the hook portion 56 of the locking member 52 is engaged, and a stopper receiving portion (engaged portion) 59 to which the ring stopper 54 is hooked. The lock receiving portion 58 is in the form of a claw that protrudes forward from the lower end portion on the front side of the lid body 20. The stopper receiving portion 59 is in the form of a substantially semicircular ring that fits the shape of the inner periphery of the ring stopper 54, and protrudes forward from a position on the front surface of the lid body 20 that surrounds the periphery of the lock receiving portion 58. That is, the lock receiving portion 58 and the stopper receiving portion 59 are each provided on the lid body 20.

[0077] More specifically, the lid lock mechanism 50 has a lock receiving portion (engaged portion) 58 provided on one of the cap body 10 and the lid body 20 (the lid body 20 in this embodiment), and a hook portion (engaging portion) 56 provided on the other of the cap body 10 and the lid body 20 (the cap body 10 in this embodiment) that engages with the lock receiving portion 58 from the front side. In addition, the lower surface of the hook portion 56 is engaged with the upper surface of the lock receiving portion 58 so as to be movable in the front-rear direction.

[0078] The lid lock mechanism 50 has a stopper receiving portion (engaged portion) 59 provided on one of the cap body 10 and the lid body 20 (the lid body 20 in this embodiment), and a ring stopper (engaging portion) 54 provided on the other of the cap body 10 and the lid body 20 (the cap body 10 in this embodiment) and engaged with the stopper receiving portion 59 from the front side. The inner peripheral portion of the ring stopper 54 is engaged with the outer peripheral portion of the stopper receiving portion 59 so as to be movable in the front-rear direction.

[0079] 3 and 5, in a locked state in which the lid 20 is fixed in the closed position by the lid lock mechanism 50, the dimension L1 in the front-rear direction between the opposing wall portion (contacted portion) 19 and the second bearing portion (contact portion) 23 is smaller than the clearance dimension L2 in the front-rear direction between the locking member 52 and the lid 20. Specifically, in this embodiment, the clearance dimension L2 refers to the dimension L2 of the gap in the front-rear direction (so-called "play dimension") provided between the rear surface of the portion of the upper arm portion 52a of the locking member 52 other than the hook portion 56 and the front end of the lock receiving portion 58.

[0080] In this lid locking mechanism 50, when the lid body 20 is in the closed position, the hook portion 56 of the locking member 52 engages with the lock receiving portion 58, thereby fixing the lid body 20 to the cap body 10 against the rotational biasing force of the first hinge 30 in the opening direction.

[0081] From this state, the user compresses the compression coil spring 57 while pushing the lower arm portion 52b of the locking member 52 rearward, thereby releasing the engagement state of the hook portion 56 with the lock receiving portion 58. This allows the lid body 20, which is biased in the opening direction, to be rotated to the open position.

[0082] Furthermore, in the lid locking mechanism 50, when the lid 20 is in the closed position, the ring stopper 54 is latched (engaged) with the stopper receiving portion 59, thereby preventing the lid 20 from rotating in the opening direction. This makes it possible for the lid locking mechanism 50 to prevent the lid 20 from being opened by unnecessary (unintended) operation of the locking member 52, etc.

[0083] In the cap unit 1A and beverage container 100 of the present embodiment described above, when an impact is applied from the first hinge 30 side (rear side) due to, for example, being dropped, the lid body 20 is displaced forward and the second bearing portion (contact portion) 23 of the lid body 20 abuts against the opposing wall portion (contacted portion) 19 of the cap body 10. The abutment between the abutment portion 23 and the contacted portion 19 absorbs the impact and suppresses further displacement of the lid body 20 toward the front. Since the amount of displacement of the lid body 20 toward the front can be suppressed to a small amount, it is possible to suppress unintentional release of the locked state of the lid body 20 by the lid lock mechanism 50.

[0084] More specifically, since the amount of forward displacement of the lid 20 is kept small, the locked state between the lock receiving portion 58 and the hook portion 56 is well maintained. Also, the locked state between the stopper receiving portion 59 and the ring stopper 54 is well maintained. As described above, according to this embodiment, even if the container is subjected to an impact due to being dropped or the like, the locked state of the lid 20 can be well maintained, and the beverage can be prevented from leaking out of the container.

[0085] In this embodiment, the dimension L1 in the front-rear direction between the abutted portion 19 and the abutting portion 23 is smaller than the clearance dimension L2 in the front-rear direction between the locking member 52 and the cover 20 when the cover 20 is in the locked state, that is, the so-called "play dimension" L2. Therefore, when the cover 20 is displaced forward due to an impact such as a fall, the abutted portion 19 and the abutting portion 23 come into contact with each other first, and the cover 20 is prevented from displacing forward beyond the play dimension L2 and abutting against the locking member 52. The hook portion 56 of the locking member 52 and the lock receiving portion 58 of the cover 20 are well maintained in the locked state, so that the locking state of the cover 20 can be more stably prevented from being unintentionally released.

[0086] Also, although not specifically shown, when a clearance dimension (play dimension) in the front-to-rear direction is provided between the ring stopper 54 and the lid peripheral wall portion 20b when the lid body 20 is in the locked state, the front-to-rear direction dimension L1 between the opposing wall portion (abutted portion) 19 and the second bearing portion (abutting portion) 23 can be made smaller than this clearance dimension, thereby maintaining the engagement state between the stopper receiving portion 59 and the ring stopper 54 in a good condition, as described above.

[0087] In this embodiment, since the opposing wall portion 19 faces the second bearing portion 23 from the front side, even if an impact is received from the first hinge 30 side (rear side) when the lid body 20 is in the open state at the open position, the impact can be received by the abutment between the opposing wall portion 19 and the second bearing portion 23. This increases the strength of the cap unit 1A near the first hinge 30, and makes it possible to suppress damage to the first hinge 30, etc., due to being dropped, etc.

[0088] In this embodiment, the opposing wall portion 19 and the connecting wall portion 18b of the first bearing portion 18 are connected to each other. In this case, the strength of the first bearing portion 18 is increased by the opposing wall portion 19, which further suppresses damage to the first hinge 30, etc. Also, the improvement in the rigidity of the first bearing portion 18 reduces the amount of forward displacement of the cover body 20, so that the above-described operational effects of the present embodiment are more stably achieved.

[0089] In this embodiment, in the vertical cross-sectional view shown in FIG. 5, the rear surface 19a of the opposing wall portion 19 is in the shape of a concave arc centered on the hinge central axis A, that is, the rear surface 19a is in the shape of a concave curved surface expanding in the hinge circumferential direction. In this case, the effect of receiving the second bearing portion 23 by the opposing wall portion 19 becomes more stable.

[0090] In this embodiment, a pair of the opposing wall portion (contacted portion) 19 and the second bearing portion (contact portion) 23 is provided on both sides in the left-right direction centered on the central axis C of the cap unit 1A. In this case, not only is the amount of displacement of the lid body 20 toward the front kept small, but also the amount of displacement of the lid body 20 when viewed from above so as to rotate (twist left and right) around the first hinge 30 can be kept small because the impact can be received by the abutment of the pair of the opposing wall portion (abutted portion) 19 on either the left or right side and the second bearing portion (abutting portion) 23. Therefore, the above-described effect of this embodiment becomes more remarkable, and damage to the first hinge 30, etc. due to the torsional displacement (deformation) of the lid body 20 can be suppressed.

[0091] <Second embodiment> Next, a cap unit 1B according to a second embodiment of the present invention and a beverage container 100 including the cap unit 1B will be described with reference to Fig. 6 and Fig. 7. In this embodiment, the same configurations as those in the above-mentioned embodiment are given the same names and symbols, and the description thereof will be omitted.

[0092] Fig. 6 shows an open state where the cover 20 is in the open position, and Fig. 7 shows a closed state where the cover 20 is in the closed position. Fig. 7 is a cross-sectional perspective view including a cross section perpendicular to the central axis C (not shown).

[0093] 6 and 7, in this embodiment, the cap body 10 has a first wall portion (contact portion) 70 facing the rear side. The first wall portion 70 is a wall portion provided on the top wall portion 10a, and protrudes upward and extends in the left-right direction. In this embodiment, the first wall portion 70 is disposed between the nozzle portion 11 (liquid passage port 12) and the air hole 13 in the front-rear direction.

[0094] The lid body 20 also has a second wall portion (contact portion) 71 that contacts the first wall portion 70 from the rear side when the lid body 20 is displaced forward due to an impact such as a fall. The second wall portion 71 is rib-shaped and protrudes inward from the inner peripheral surface of the lid peripheral wall portion 20b and extends in the vertical direction. In the illustrated example, the amount of protrusion of the second wall portion 71 inward from the inner peripheral surface of the lid peripheral wall portion 20b increases toward the lower side (the cap body 10 side). In addition, the second wall portion 71 may face the first wall portion 70 with a gap therebetween in the closed position (closed state) of the lid body 20, or may contact the first wall portion 70 as long as the dimensions can be controlled with high precision.

[0095] Specifically, as shown in FIG. 7, in a locked state in which the lid body 20 is fixed in the closed position by the lid locking mechanism 50, the front-to-rear dimension L1 between the first wall portion (abutment portion) 70 and the second wall portion (abutment portion) 71 is smaller than the above-mentioned clearance dimension L2 (see FIG. 3).

[0096] Further, a pair of a first wall portion 70 and a second wall portion 71 facing each other is provided on both sides in the left-right direction centered on the central axis C of the cap unit 1B.

[0097] According to the cap unit 1B and beverage container 100 of this embodiment described above, the same effects as those of the above-mentioned embodiment can be obtained. Furthermore, in this embodiment, the contact position between the first wall portion (contact portion) 70 and the second wall portion (contact portion) 71 can be disposed forward of the contact position between the opposing wall portion (contact portion) 19 and the second bearing portion (contact portion) 23 in the first embodiment. In other words, since the contact position can be disposed closer to the lid locking mechanism 50, it is possible to more stably prevent the locked state of the lid body 20 by the lid locking mechanism 50 from being unintentionally released.

[0098] <Third embodiment> Next, a cap unit 1C according to a third embodiment of the present invention and a beverage container 100 including the same will be described with reference to Figures 8 and 9. In this embodiment, the same configurations as those in the above-described embodiment will be given the same names and symbols, and the description thereof will be omitted.

[0099] FIG. 8 shows an open state where the cover 20 is in the open position, and FIG. 9 shows a closed state where the cover 20 is in the closed position.

[0100] 8 and 9, in this embodiment, the cap body 10 has a rib portion (contact portion) 72 that protrudes upward from the top wall portion 10a and extends in the left-right direction. In the illustrated example, the rib portion 72 is arranged side by side with the nozzle portion 11 (liquid passage port 12) in the left-right direction.

[0101] The lid 20 also has a groove (contact portion) 73 that engages with the rib 72 when the lid 20 is in the closed position (closed state). The groove 73 is recessed upward from the lower end surface of the lid peripheral wall 20b and extends in the left-right direction. The groove 73 penetrates the lid peripheral wall 20b in the left-right direction and opens to the outer peripheral surface and the inner peripheral surface of the lid peripheral wall 20b.

[0102] When the lid 20 is displaced forward due to an impact such as a drop, the groove 73 comes into contact with the rib 72 from the rear side. Note that when the lid 20 is in the closed position (closed state), the groove 73 may face the rib 72 with a gap therebetween, or may come into contact (fit) with the rib 72 if the dimensions can be controlled with high precision.

[0103] Specifically, as shown in FIG. 9, in a locked state in which the lid body 20 is fixed in the closed position by the lid locking mechanism 50, the front-to-rear dimension L1 between the rib portion (contact portion) 72 and the groove portion (contact portion) 73 is smaller than the above-mentioned clearance dimension L2 (see FIG. 3).

[0104] Moreover, the pair of rib portions 72 and groove portions 73 facing each other is provided on both sides in the left-right direction about a central axis C (not shown) of the cap unit 1C.

[0105] According to the cap unit 1C and beverage container 100 of this embodiment described above, the same effects as those of the above-mentioned embodiment can be obtained. Furthermore, in this embodiment, the contact position between the rib portion (contact portion) 72 and the groove portion (contact portion) 73 can be disposed forward of the contact position between the opposing wall portion (contact portion) 19 and the second bearing portion (contact portion) 23 in the first embodiment. In other words, since the contact position can be disposed closer to the lid locking mechanism 50, it is possible to more stably prevent the locked state of the lid body 20 by the lid locking mechanism 50 from being unintentionally released. Although not specifically shown, as a modified example of this embodiment, the cap body 10 may have a groove portion (abutment portion), the lid body 20 may have a rib portion (abutment portion), and when the lid body 20 is displaced forward, the rib portion may abut against the groove portion from the rear side.

[0106] The present invention is not limited to the above-described embodiment, and the configuration may be modified within the scope of the present invention, for example as described below.

[0107] In the above embodiment, an example was given in which the biasing portion 60 that biases the cover body 20 in the opening direction about the first hinge 30 is a torsion coil spring disposed inside the first hinge 30, but this is not limited to this. The biasing portion may be, for example, the ventilation sealing portion 22. In this case, when the lid body 20 is in the closed state, the ventilation sealing portion 22 is elastically deformed by its lower end portion being pressed against the top wall portion 10a, and biases the lid body 20 in the opening direction around the first hinge 30 by the restoring deformation force. Although not specifically shown, the biasing portion may be composed of a ring-shaped elastic member hooked between the first hinge 30 and the lid top wall portion 20a, and may bias the lid body 20 in the opening direction around the first hinge 30.

[0108] In the above embodiment, an example was given in which the locking member 52 of the lid locking mechanism 50 was rotatable about the second hinge 55, but the present invention is not limited to this. 10 shows a modified example of the lid locking mechanism 50. In this modified example, the lid locking mechanism 50 has a locking member 81 that is slidable in the front-rear direction, and an elastically deformable elastic member 82 that biases the locking member 81 forward. The locking member 81 and the elastic member 82 are provided on the cap body 10. The elastic member 82 is elastically deformable in the front-rear direction, and is made of, for example, rubber, elastomer, or a compression coil spring.

[0109] Further, the lock member 81 is provided at its upper end with a first claw portion (locked portion) 83 that protrudes forward. A second claw portion (locking portion) 84 protruding toward the rear is provided at the front lower end of the lid peripheral wall portion 20b of the lid body 20. The second claw portion (locking portion) 84 is locked to the first claw portion (locked portion) 83 from the front side.

[0110] More specifically, the lid locking mechanism 50 has a first claw portion (engaged portion) 83 of a locking member 81 provided on one of the cap body 10 and the lid body 20 (cap body 10 in this modified example), and a second claw portion (engaging portion) 84 provided on the other of the cap body 10 and the lid body 20 (lid body 20 in this modified example) and engaged with the first claw portion 83 from the front side. Even when the modified cover lock mechanism 50 shown in FIG. 10 is employed, the same effects as those of the above-described embodiment can be obtained.

[0111] 10, in this modified example, in a locked state in which the lid 20 is fixed in the closed position by the lid lock mechanism 50, it is preferable that the dimension L1 in the front-rear direction between the abutted portion (for example, the opposing wall portion 19 in the first embodiment) and the abutting portion (for example, the second bearing portion 23 in the first embodiment) is smaller than the locking dimension in the front-rear direction between the first claw portion (locked portion) 83 and the second claw portion (locking portion) 84. Note that the locking dimension is the dimension in the front-rear direction of the locking portion where the lower surface of the first claw portion 83 and the upper surface of the second claw portion 84 come into contact with each other, and may be rephrased as the engagement allowance. In this case, when the lid body 20 is displaced forward due to an impact from being dropped or the like, the abutted portion 19 and the abutting portion 23 come into contact with each other first, thereby preventing the lid body 20 from being displaced forward beyond the above-mentioned locking dimension. This maintains the locked state between the first claw portion 83 of the locking member 81 and the second claw portion 84 of the lid body 20, so that the locked state of the lid body 20 can be more stably prevented from being unintentionally released.

[0112] In the above embodiment, the present invention is applied to a beverage container 100 having a hot / cold insulation function provided by a container body 2 having a vacuum insulation structure, but the present invention is not limited to this. That is, the present invention can be widely applied to a capped container in which a cap unit closes an upper opening of a container body.

[0113] The present invention may be combined with the various configurations described in the above-mentioned embodiments and modifications, and may include additions, omissions, substitutions, and other modifications, without departing from the spirit of the present invention. The present invention is not limited to the above-mentioned embodiments, but is limited only by the claims. [Explanation of symbols]

[0114] 1A, 1B, 1C...cap unit, 2...container body, 2d...upper opening, 10...cap body, 12...liquid passage port, 18...first bearing portion, 19...opposing wall portion (contact portion), 20...lid body, 23...second bearing portion (contact portion), 30...first hinge (hinge), 31...hinge shaft, 50...lid lock mechanism, 52, 81...locking member, 54...ring stopper (locking portion), 56...hook portion ( a stopper receiving portion (engaged portion), 58...lock receiving portion (engaged portion), 59...stopper receiving portion (engaged portion), 60...biasing portion, 70...first wall portion (contact portion), 71...second wall portion (contact portion), 72...rib portion (contact portion), 73...groove portion (contact portion), 83...first claw portion (engaged portion), 84...second claw portion (engaged portion), 100...beverage container, A...hinge central axis, C...central axis, L1...dimension, L2...clearance dimension

Claims

1. A cap unit to be attached to a container body having an open top, a cap body that closes an upper opening of the container body and has a liquid passage hole that communicates between the inside and the outside of the container body; a lid body disposed on an upper side of the cap body and covering the liquid passage hole; a hinge that rotatably connects the lid body to the cap body; a lid lock mechanism that fixes the lid body in a closed position relative to the cap body, The hinge is disposed at the rear of the cap unit, The lid lock mechanism is disposed at the front of the cap unit, The lid lock mechanism is A latched portion provided on the lid; a locking portion provided on the cap body and locked to the locked portion from a front side, The cap body has a contact portion, the lid body has an abutting portion that abuts against the abutted portion from a rear side when the lid body is displaced forward, the lid lock mechanism has a lock member in which the engaging portion is disposed, in a locked state in which the lid is fixed at the closed position by the lid lock mechanism, a dimension in the front-rear direction between the abutted portion and the abutting portion is smaller than a clearance dimension in the front-rear direction between the locking member and the lid; Cap unit.

2. A cap unit to be attached to a container body having an opening at the top, a cap body that closes an upper opening of the container body and has a liquid passage hole that communicates between the inside and the outside of the container body; a lid body disposed on an upper side of the cap body and covering the liquid passage hole; a hinge that rotatably connects the lid body to the cap body; a lid lock mechanism that fixes the lid body in a closed position relative to the cap body, The hinge is disposed at the rear of the cap unit, The lid lock mechanism is disposed at the front of the cap unit, The lid lock mechanism is A locked portion provided on the cap body; a locking portion provided on the lid and locked to the locked portion from the front side, The cap body has a contact portion, the lid body has an abutting portion that abuts against the abutted portion from a rear side when the lid body is displaced forward, the lid locking mechanism has a locking member on which the engaged portion is disposed, In a locked state in which the lid body is fixed at the closed position by the lid lock mechanism, a dimension in the front-rear direction between the abutted portion and the abutting portion is smaller than a locking dimension in the front-rear direction between the engaged portion and the engaging portion. Cap unit.

3. The cap body has a first bearing portion extending along a hinge central axis of the hinge, the cover body has a second bearing portion arranged coaxially with the first bearing portion, the hinge has a hinge shaft that pivotally supports the first bearing portion and the second bearing portion so as to be rotatable about the hinge central shaft, the cap body has an opposing wall portion that faces the second bearing portion from a front side, the abutted portion is the opposing wall portion, The abutment portion is the second bearing portion. The cap unit according to claim 1 or 2.

4. a pair of the abutted portion and the abutting portion is provided on both sides in the left-right direction about a central axis of the cap unit, The cap unit according to claim 1 .

5. A cap unit according to any one of claims 1 to 4, The container body to which the cap unit is attached. Beverage container.

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