Lid body and container having the same

Abstract

To provide a lid body capable of simplifying a configuration for holding an opening / closing member in an open state, and a container having the lid body.SOLUTION: The present invention relates to a lid body which closes an upper opening of a container body for holding a liquid, which comprises: a body part in which the upper opening of the container body is detachably closed and a spout of the liquid is formed; an opening / closing member having a first end part and a second end part opposite to the first end part, the first end part being attached to the body part so as to swing between a closed position for closing the spout and a first open position for opening the spout; a holding mechanism for holding the second end part of the opening / closing member to the body part when the opening / closing member is in the closed position; and a holding part provided on the body part and elastically deformable. The holding part is held by the opening / closing member in the first open position, and when the opening / closing member is displaced from the first opening position to the closed position, the opening / closing member presses the holding part and accommodates the same between the opening / closing member and the body part.SELECTED DRAWING: Figure 9

Description

[Technical field]

[0001] The present invention relates to a lid for closing an upper opening of a container body that contains a liquid, and to a container provided with the lid. [Background technology]

[0002] Patent Document 1 discloses a beverage container having a container body with an opening at the top and a lid attached to the opening of the container body. A spout for pouring beverages is formed in the lid, and an opening / closing member is provided to close the spout. One end of the opening / closing member is attached to the container body so as to be able to swing, and an operating member is attached to the one end. The container is configured so that when a user presses the operating member, the opening / closing member swings to open the spout. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2020-45129 A DISCLOSURE OF THEINVENTION [Problem to be solved by the invention]

[0004] However, the mechanism for operating the opening and closing member in the above-mentioned container was configured to swing the opening and closing member by pushing in the operating member and to hold the opening and closing member in an open position with the spout open, which caused the problem of a complex structure.

[0005] The present invention has been made to solve the above problems, and aims to provide a lid body and a container equipped with the same, which can simplify the structure for holding the opening and closing member in the open state. [Means for solving the problem]

[0006] The present invention is a lid body for closing an upper opening of a container body for containing a liquid, comprising: a main body portion which closes the upper opening of the container body in a removably attachable and detachable manner and in which a spout for the liquid is formed; an opening / closing member having a first end and a second end opposite to the first end, the first end being attached to the main body portion so as to swing between a closed position in which the spout is blocked and a first open position in which the spout is opened; a retaining mechanism which is capable of retaining the opening / closing member in the closed position by engaging with the second end of the opening / closing member; and a retaining portion which is provided on the main body portion and is elastically deformable, wherein the retaining portion retains the opening / closing member in the first open position, and when the opening / closing member is displaced from the first open position to the closed position, the opening / closing member presses the retaining portion to be accommodated between the opening / closing member and the main body portion.

[0007] In the above-mentioned lid body, an air hole is formed in the main body portion, and the air hole can be configured to close the air hole when the opening / closing member is in the closed position and to open the air hole when the opening / closing member is in the first open position.

[0008] In the above lid body, a sealing member can be provided in which a first sealing portion that seals between the lid body and the main body portion, a second sealing portion that seals between the spout and the opening / closing member when the opening / closing member is in the closed position, a third sealing portion that seals between the air hole and the opening / closing member when the opening / closing member is in the closed position, and the retaining portion are integrally formed.

[0009] In the above-mentioned cover body, the opening / closing member is configured to be able to swing to a second open position in which the swing angle from the first open position is even larger than the first open position, and the opening / closing member can be configured to be locked in the second open position.

[0010] In the above-mentioned lid body, when the opening / closing member is in the closed position, the opening / closing member can be configured to move to the second open position by the elastic force of the holding portion when the holding mechanism releases the holding of the opening / closing member.

[0011] In the above-mentioned lid, the holding mechanism has an operation unit that is configured to be displaceable to Position A, Position B, and Position C, and when the operation unit is at Position A, the opening / closing member is held at the closed position, and the operation unit can be configured to be displaced from Position A in a first direction to Position B, and then displaced from Position B in a second direction different from the first direction to Position C, thereby releasing the holding of the opening / closing member at the closed position. Note that the holding of the opening / closing member by the holding mechanism can also be released by moving the operation unit to three or more positions.

[0012] A container according to the present invention includes any of the lids described above and the container body. Effect of the Invention

[0013] According to the lid of the present invention, the structure for holding the opening / closing member in the open state can be simplified. [Brief description of the drawings]

[0014] [Figure 1] FIG. 1 is a perspective view of a container according to an embodiment of the present invention. [Diagram 2] FIG. [Diagram 3] FIG. [Figure 4] 13 is a plan view showing a state in which the opening and closing member is removed from the lid body. FIG. [Diagram 5] FIG. [Figure 6] 4 is a perspective view of the cover when the opening / closing member is in a first open position. FIG. [Figure 7] 11 is a perspective view of the cover when the opening / closing member is in a second open position. FIG. [Figure 8] 4 is a cross-sectional view of the cover when the opening / closing member is in a closed position. FIG. [Figure 9] 4 is a cross-sectional view of the cover when the opening / closing member is in a first open position. FIG. [Figure 10] 4A and 4B are a perspective view and a cross-sectional view of the holding mechanism when the opening / closing member is in a closed position. [Figure 11] 13A and 13B are perspective and cross-sectional views showing an operation for unlocking the holding mechanism. [Figure 12] 13A and 13B are perspective and cross-sectional views showing an operation for unlocking the holding mechanism. [Figure 13] 13 is a perspective view showing another example of the cover when the opening / closing member is in the second open position. FIG. [Figure 14] 13 is a cross-sectional view showing another example of the cover when the opening / closing member is in the first open position. FIG. [Figure 15] 13 is a cross-sectional view showing another example of the cover when the opening / closing member is in the closed position. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] Hereinafter, an embodiment in which a container according to the present invention is applied to a beverage container will be described with reference to the drawings.

[0016] Fig. 1 is a perspective view of a container according to this embodiment. As shown in Fig. 1, the container according to this embodiment includes a container body 1 having an opening at the top, and a lid body 2 that detachably closes the top opening of the container body 1. The container body 1 is capable of containing a liquid beverage such as water, and the beverage is discharged from the lid body 2. These members will be described in detail below.

[0017] <1. Container body> Fig. 2 is a perspective view of the container body. As shown in Fig. 2, the container body 1 has a rectangular bottom wall portion 12 and a side wall portion 13 that is long in the vertical direction, and has an opening 11 at the top. The upper end of the side wall portion 13 is formed in a cylindrical shape that is smaller than the outer shape of the lid body 2, and the opening 11 is formed at the upper end. In addition, a male thread (e.g., a double thread) 15 is formed on the outer surface of the cylindrical upper end. Each first rib 15 of the male thread 15 is adapted to engage with a second rib 33 formed on the lid body 2, as described later.

[0018] <2. Lid> Figure 3 is an oblique view of the lid body, Figure 4 is a plan view showing the state in which the opening / closing member has been removed from the lid body, Figure 5 is a bottom view of the lid body from below, Figure 6 is an oblique view of the lid body when the opening / closing member is in the first open position, Figure 7 is an oblique view of the lid body when the opening / closing member is in the second open position, Figure 8 is a cross-sectional view of the lid body when the opening / closing member is in the closed position, and Figure 9 is a cross-sectional view of the lid body when the opening / closing member is in the first open position.

[0019] As shown in Figures 3 to 5, the lid body 2 comprises a main body portion 3 that covers the upper opening 11 of the container body 1, an opening / closing member 4 attached to the main body portion 3, a holding mechanism 5 that holds the opening / closing member 4 in a closed position, and a sealing member 6 for hermetically sealing the main body portion 3 and the container body 1.

[0020] <2-1.Main body> As shown in Figs. 3 and 4, the main body 3 has a top surface 31 and a side surface 32 extending downward from the outer periphery of the top surface 31. The outer shape of the top surface 31 is formed in a rectangular shape with four arc-shaped corners to correspond to the container main body 1, and the side surface 32 is formed accordingly. For convenience of explanation, the four corners of the top surface 31 will be referred to as first, second, third, and fourth corners 311-314, respectively, and the sides connecting the adjacent corners 311-314 will be referred to as first, second, third, and fourth sides 315-318, respectively. Also, as shown in Fig. 5, the side surface 32 is composed of first, second, third, and fourth surface portions 321-324 corresponding to the first, second, third, and fourth sides 315-318 of the top surface 31. In the following, for ease of explanation, the direction connecting the first corner 311 and the third corner 313 may be referred to as the front-to-rear direction, and the direction connecting the second corner 312 and the fourth corner 314 may be referred to as the left-to-right direction.

[0021] 4, the top surface portion 31 is formed with a recess 7 that is rectangular in plan view and extends from the first corner portion 311 to the vicinity of the third corner portion 313. The recess 7 has a rectangular bottom surface portion 71, a first side surface portion 72 on the first corner portion 311 side, a second side surface portion 73 on the third corner portion 312 side, and a pair of third side surface portions 74 connecting both ends of the first side surface portion 72 and the second side surface portion 73.

[0022] Bottom surface portion 71 is formed with a circular spout 75 formed on the first side surface portion 72 side, a rectangular protrusion opening 76 formed on the third side surface portion 74 side, and an air hole 77 formed between spout 75 and protrusion opening 76. Spout 75, protrusion opening 76, and air hole 77 all penetrate bottom surface portion 71. In addition, protrusions 78 facing each other are formed on the second side surface portion 73 sides of the pair of third side surface portions 74, respectively.

[0023] As shown in FIG. 5, the lower surface of the top surface portion 31 is formed with a circular ring portion 34 protruding downward, and a recessed portion 35 formed on the lower surface of the bottom surface of the recess 7 described above. The lower surface of the top surface portion 31 is partitioned by the ring portion 34, and a sealing area 36 in which the sealing member 6 is arranged is formed between the ring portion 34 and the side surface portion 32. The recessed portion 35 is formed to correspond to the spout 75, the protruding portion opening 76, and the air hole 77 and to cover them from below. A notch 341 is formed on the front side of the ring portion 34, and the sealing area 36 and the recessed portion 35 communicate with each other via this notch 341. Therefore, the sealing member 6 described above is formed such that the portion arranged in the sealing area 36 and the portion arranged in the recessed portion 35 are integrally formed.

[0024] 6 and 7, the front side (first corner 311 side) of the side surface portion 32 is formed with a holding surface 37 having a rectangular shape in a side view on which a holding mechanism 5 (described later) is disposed, and support portions 38 extending in the vertical direction at both ends of the holding surface 37. The support portions 38 protrude slightly forward and support a lock portion 51 of the holding mechanism 5 so that it can freely swing, as described later.

[0025] 8 and 9, the first, second, third and fourth surface portions 321-324 of the side surface portion 32 are each formed with a second rib 33 extending horizontally while being slightly inclined. As described above, each second rib 33 is adapted to engage with the second rib 33 formed on the lid body 2. More specifically, when the upper portion of the side wall portion 13 of the container body 1 is fitted into the inner surface of the side surface portion 32 of the lid body 2, the second rib 33 is adapted to come into contact with the lower surface of the first rib 15.

[0026] <2-2. Opening and closing parts> 6 and 7, the opening / closing member 4 has a plate-shaped main body 41 arranged so as to cover the recess 7 described above, and a rectangular front wall 42 extending downward at the first corner 311 side of the main body 41. Support holes (not shown) into which the protrusions 78 of the recess 7 fit are formed on the side surfaces of the main body 41 at the third corner 313 side. The protrusions 78 fit into these support holes, allowing the opening / closing member 4 to swing around the protrusions 78.

[0027] On the underside of the opening / closing member 4, when the opening / closing member 4 is in the closed position closing the recess 7, there are formed a cylindrical first closing part 43 which closes the spout 75, and a rod-shaped second closing part 44 which closes the air hole 77. In addition, between the second closing part 44 and the end part on the third corner part 313 side of the opening / closing member 4, a convex plate material 45 is formed, and this plate material 45 is adapted to come into contact with a protruding part 66 of the sealing member 6, as described below.

[0028] The front wall 42 of the opening / closing member 4 is formed in a plate shape, and when the opening / closing member 4 is in the closed position, extends downward outside the first side surface portion 72 of the recess 7. In addition, a protrusion 421 extending horizontally is formed at the lower end of the outer surface of the front wall 42.

[0029] <2-3. Holding mechanism> As shown in FIG. 10, the holding mechanism 5 is a mechanism for holding the opening / closing member 4 in the closed position, and in the locked state, the opening / closing member 4 is held in the closed position. When the locked state is released, the opening / closing member 4 becomes swingable. As a result, the protruding portion 66 pushes up the plate material 45 of the opening / closing member 4 as the protruding portion 66 returns to its initial state by elastic deformation. As a result, the spout 75 and the air hole 77 can be opened. The holding mechanism 5 is disposed on the holding surface 37 of the side surface portion 32 of the lid body 2 described above, and has a locking portion 51 that engages with the protruding portion 421 of the front wall portion 42 of the opening / closing member 4, and an operating portion 52 for operating the locking portion 51. The locking portion 51 has a first portion 511 extending in the left-right direction, a second portion 512 extending downward from both ends of the first portion 511, and a third portion 513 that connects the lower ends of both second portions and extends in the left-right direction. Therefore, the locking portion 51 has a through hole 514 surrounded by the first to third portions 511-513. The first portion 511 has a horizontal groove 515 formed on a surface facing the holding surface 37. As shown in FIG. 10(b), when the opening / closing member 4 is in the closed position, the protrusion 421 of the front wall portion 42 engages with this groove 515, thereby locking the opening / closing member 4 in the closed position.

[0030] Each second portion 512 is supported by the support portion 38 of the side surface portion 32. More specifically, the vicinity of the center in the vertical direction of each second portion 512 is supported by each support portion 38 so as to be able to swing. Therefore, the second portion 512 can be in an initial state in contact with the holding surface 37, and an unlocked state in which the upper portion of the second portion 512 swings forward from this initial state. Since the second portion 512 is integrally formed with the first portion 511, when the second portion 512 is in the initial state, the first portion 511 engages with the front wall portion 42 as described above, and locks the opening / closing member 4 in the closed position. On the other hand, as shown in FIG. 12, when the second portion 512 swings to the unlocked state, the engagement between the first portion 511 and the front wall portion 42 is released, and the opening / closing member 4 opens from the closed position.

[0031] A coil spring 53 is provided between the third portion 513 and the holding surface 37, and a force acts on the third portion 513 to push it forward.

[0032] The operation unit 52 has a first portion 521 having a rectangular shape in a side view, and a second portion 522 having an L-shaped cross section extending backward from the upper end of the first portion 521. The lower end of the first portion 521 is in contact with the outer surface of the third portion 513 of the locking portion 51, and is slidable in the vertical direction. In addition, a lever 524 extending in the horizontal direction is formed at the upper end of the first portion 521, and a user hooks a finger (for example, a thumb) on the lever 524 to move the operation unit 52 up and down. When the upper end of the first portion 521 is in contact with the first portion 511 of the locking portion 51, the operation unit 52 is restricted from moving further upward. Hereinafter, this position will be referred to as an initial position (position A). On the other hand, as shown in FIG. 11, when the lower end of the second portion 522 is in contact with the third portion 513 of the locking portion 51, the operation unit 52 is restricted from moving further downward. Hereinafter, this position will be referred to as an unlocked position (position B).

[0033] The second portion 522 has a horizontal portion 5221 extending toward the holding surface 37 through the through hole 514 of the locking portion 51, and an extending portion 5222 extending upward from the horizontal portion 5221. As shown in FIG. 10(b), when the operating portion 52 is in the initial position, the extending portion 5222 is disposed between the outer surface of the first side portion 72 of the recess 7 and the holding surface 37. This prevents the upper ends of the operating portion 52 and the locking portion 51 from swinging forward. Therefore, the protrusion 421 of the opening / closing member 4 is held in the groove 515 of the first portion 511, and the opening / closing member 4 is held in the closed position.

[0034] As shown in FIG. 11(b), when the operation unit 52 slides downward from the initial position to the unlocked position, the extension 5222 moves downward from the front wall 42 of the opening / closing member 4. Therefore, as shown in FIG. 12, when the vicinity of the lower end of the operation unit 52 is pushed backward with a finger against the elastic force of the coil spring 53 from this state, the upper end of the lock unit 51 and the operation unit 52 swing forward (the position after swinging is position C), and the engagement between the lock unit 51 and the front wall 42 is released. As a result, the opening / closing member 4 is pushed upward by the protrusion 66 as described later, and automatically swings from the closed position to the first open position. Therefore, the opening / closing member 4 can be opened by sliding and pushing the operation unit 52 in a series of operations with a finger. Since the elastic force of the coil spring 53 acts on the lock unit 51, when the finger is released from the state in FIG. 12 where the finger is pressing the lower end of the operation unit 52, the operation unit 52 and the lock unit 51 return to the state shown in FIG. 11.

[0035] <2-4. Sealing materials> 4 and 5, the sealing member 6 is made of an elastic material such as rubber, elastomer, or silicone, and has a first portion 61 disposed in the above-mentioned sealing area 36, ​​and a second portion 62 disposed in the recessed portion 35. For ease of explanation, the sealing member 6 is colored gray in FIGS. 4 and 5. The first portion 61 is adapted to come into contact with the upper end of the side wall portion 13 of the container body 1, thereby sealing the container body 1 and the lid 2.

[0036] In the second portion 62, a third portion 63 protruding upward along the inner circumference of the spout 75, a fourth portion 64 protruding upward along the inner circumference of the air hole 77, and a fifth portion 65 closing the protruding portion opening 76 are formed. These third to fourth portions 63 to 65 protrude from the second portion 62 to the upper surface side of the bottom surface portion 71 via the spout 75, the protruding portion opening 76, and the air hole 77, respectively. When the opening / closing member 4 is in the closed position, the lower end of the first closing portion 43 mentioned above contacts the third portion 63, and the lower end of the second closing portion 44 mentioned above is inserted into the through hole formed by the fourth portion 64. This causes the spout 75 and the air hole 77 to be sealed.

[0037] A plate-shaped protrusion (holding portion) 66 extending in the left-right direction is formed on the upper surface of the fifth portion 65. These first to fifth portions 61 to 65 are integrally formed. For example, the seal member 6 can be formed on the main body portion 21 of the lid 2 by insert molding, two-color molding, or the like. However, the seal member 6 can also be bonded to the main body portion 21.

[0038] As shown in FIG. 8, when the opening / closing member 4 is in the closed position, the protruding portion 66 is pressed by the plate material 45 of the opening / closing member 4 and is bent forward. On the other hand, as shown in FIG. 9, when the lock of the opening / closing member 4 is released, the bent protruding portion 66 is elastically deformed and returns to the initial standing state, so that the opening / closing member 4 is pushed upward. As a result, the opening / closing member 4 is swung upward by the protruding portion 66 and supported by the protruding portion 66. This state is referred to as the first open position. In the initial state in which the protruding portion 66 is not pressed by the opening / closing member 4, the protruding portion 66 protrudes upward from the lower surface (or the lower edge of the plate material 45) of the main body portion 41 of the opening / closing member 4 in the closed position. Therefore, the opening / closing member 4 is pushed up by the protruding portion 66 and held in the first open position as shown in FIG. When the opening / closing member 4 is in the first open position, the first closing portion 43 and the second closing portion 44 of the opening / closing member 4 are separated from the third portion 63 and the fourth portion 64, respectively. As a result, when the container is tilted, air flows into the container through the air hole 77 and the beverage can be smoothly discharged from the spout 75.

[0039] As shown in FIG. 7, the opening / closing member 4 can be swung upward from the first open position away from the protrusion 66 to a position swung upward by about 90° or more from the closed position, and this position is referred to as the second open position. In the second open position, the opening / closing member 4 can be locked at that position. That is, the opening / closing member 4 is separated from the protrusion 66, but can be held in the open position. When the opening / closing member 4 is in the second open position, the lock can be released by swinging the opening / closing member 4 toward the closed position. There is no particular limitation on the method of locking the opening / closing member, and various methods are possible, such as locking by providing a protrusion that engages with the opening / closing member 4 or locking by friction between the opening / closing member 4 and the surface of the recess 7. The opening / closing member 4 may be moved to the second open position manually, or may be moved to the second open position by springing up due to the elastic force of the protrusion 66, as described later.

[0040] Furthermore, when the opening / closing member 4 is pulled upward at a position where it is swung approximately 90 degrees from the closed position (between the first open position and the second open position), the engagement between the protrusion 78 and the support hole is released, and the opening / closing member 4 can be removed from the main body 3. This position is referred to as the third open position.

[0041] <3. How to use the container> Next, a method of using the container configured as described above will be described. First, a beverage is supplied to the container body 1 with the container body 1 and the lid body 2 separated. Next, the upper end of the container body 1 is inserted into the inside of the lid body 2, and the container body 1 or the lid body 2 is rotated to screw the male thread 15 into the second rib 33. Then, the container body 1 or the lid body 2 is rotated until the upper end of the container body 1 comes into contact with the first portion 61 of the seal member 6. This causes the lid body 2 to be attached to the container body 1 in a sealed state.

[0042] Next, when the operating part 52 is slid downward (in the first direction) from the initial state, the operating part 52 and the locking part 51 become capable of swinging forward. When the lower end of the operating part 52 is pushed backward in this state, the engagement between the locking part 51 and the front wall part 42 is released, and the opening / closing member 4 becomes capable of swinging from the closed position. When the locking state of the opening / closing member 4 is released, the opening / closing member 4 is pushed upward by the protruding part 66 and is held in the first open position as shown in FIG. 9. When the container is tilted in this state, air flows into the container through the air hole 77, and the beverage can be discharged from the spout 75.

[0043] When the discharge of the beverage is completed, first, the opening / closing member 4 is pressed near the front end to return it to the closed position. At this time, the protrusion 421 of the opening / closing member presses the first portion 511 of the locking portion 51, and swings the locking portion 51 and the operating portion 52 forward against the elastic force of the coil spring 53. Then, when the opening / closing member 4 is pressed further downward, the protrusion 421 fits into the groove 515 of the first portion 511. As a result, the upper ends of the locking portion 51 and the operating portion 52 swing toward the holding surface 37 by the action of the coil spring 53, returning to the state shown in FIG. 11. Next, when the lever 524 is hooked with a finger and the operating portion 52 is pushed upward, the operating portion 52 returns to the initial state shown in FIG. 10, and the opening / closing member 4 is held in the closed position.

[0044] When cleaning is performed, the opening / closing member 4 is swung to the third open position, and then the opening / closing member 4 is pulled to remove it from the main body 3. This separates the main body 3 from the opening / closing member 4, making cleaning easier. In addition, since the sealing member is fixed to the main body by insert molding, two-color molding, or adhesion as described above, no dirt can get between the sealing member and the main body, making cleaning easy.

[0045] <4. Features> As described above, according to this embodiment, the following effects can be obtained. (1) When the opening / closing member 4 is unlocked from the closed position, the opening / closing member 4 is automatically pushed up to the first open position by the protrusion 66, and the opening / closing member 4 is held in the first open position. Although the first open position is not a position in which the opening / closing member 4 is swung significantly, the spout and air hole can be held open, so that the beverage can be dispensed. Therefore, once the lock state of the opening / closing member 4 is unlocked, the opening / closing member 4 automatically moves to the first open position without any operation by the user, and is further held in the first open position, so that the beverage can be easily dispensed.

[0046] (2) Since the protrusion 66 is formed integrally with the seal member 6, which is made of an elastic material, the protrusion 66 can be attached to the lid 2 together with the seal member 6 without having to be attached separately. This makes the manufacture easier.

[0047] (3) The holding mechanism 5 can unlock the opening / closing member 4 by performing two operations in different directions: sliding the operating part 52 downward and then pushing in the lower end of the operating part 52 to swing it forward. Therefore, even if the operating part 52 is accidentally touched and slid, the locked state of the opening / closing member 4 is not released by that alone, and it is possible to prevent the opening / closing member 4 from opening accidentally.

[0048] <5. Modifications> Although one embodiment of the present invention has been described above, the present invention is not limited to this embodiment, and various modifications are possible without departing from the spirit of the present invention. The following modifications can be combined as appropriate.

[0049] (1) The shape and position of the protrusion 66 are not particularly limited as long as it can hold the opening / closing member 4 in the first open position and can be deformed so as to be pressed by the opening / closing member 4 and be positioned between the opening / closing member 4 and the recess 7 when the opening / closing member 4 is in the closed position. For example, the protrusion 66 can be configured as shown in Figs. 13 to 15.

[0050] As shown in Fig. 13, in this example, the protrusion 66 is formed in a rectangular parallelepiped shape with a width in the front-rear direction longer than the width in the left-right direction. The protrusion 66 is formed so that the widths in the front-rear and left-right directions become shorter from the lower end to the upper end, and the upper end is formed in a curved shape. As shown in Figs. 13 and 14, in the initial state where the protrusion 66 is not pressed by the opening / closing member 4, the protrusion 66 protrudes upward from the lower surface of the main body 41 of the opening / closing member 4 in the closed position. Therefore, the opening / closing member 4 is pushed up by the protrusion 66 and held in the first open position as shown in Fig. 14.

[0051] In this example, the plate member 45 is not provided on the opening / closing member 4, and the protruding portion 66 contacts the main body portion 41 of the opening / closing member 4. Therefore, as shown in FIG. 14, the thickness of the portion of the main body portion 41 of the opening / closing member 4 that contacts the upper end of the protruding portion 66 when the opening / closing member 4 is in the first open position is thicker than that of the above embodiment. As shown in FIG. 15, when the opening / closing member 4 is in the closed position, the protruding portion 66 is pressed and compressed by the main body portion 41 of the opening / closing member 4. That is, as in FIG. 8 of the above embodiment, the protruding portion 66 is not bent, but is compressed in the vertical direction and held between the opening / closing member 4 and the recessed portion 7. The form of the protruding portion 66 shown in FIGS. 13 to 15 is one example, and other forms are also possible. Also, as in this example, the plate member 45 can be omitted, but instead, as described above, the thickness of the main body portion 41 of the opening / closing member 4 can be increased, or a member protruding from the lower surface of the main body portion 41 can be provided in place of the plate member 45, thereby pressing the protruding portion 66.

[0052] The angle of the opening / closing member 4 in the first open position is not particularly limited as long as it allows the beverage to be dispensed from the spout 75, but can be, for example, 90° or less, and preferably about 10 to 45°. The angle of the second open position is not particularly limited as long as it is larger than the angle of the first open position. The same applies to the third open position.

[0053] (2) When the opening / closing member 4 is in the closed position, the opening / closing member 4 presses the protrusion 66. Therefore, when the lock by the holding mechanism 5 is released, the opening / closing member 4 is pushed up (or bounced up) by the elastic force of the pressed protrusion 66 restoring to its initial state, but the elastic force of the protrusion 66 for pushing up the opening / closing member 4 can be changed as appropriate. For example, when the elastic force (restoring force) of the protrusion 66 is low, the opening / closing member 4 is pushed up (or bounced up) to an angle of about the first open position (or between the first open position and the third open position (about 90 degrees)) as shown in FIG. 9 or FIG. 14. On the other hand, when the elastic force of the protrusion 66 is strong, the opening / closing member 4 is bounced up to an angle of about the second open position as shown in FIG. 7 or FIG. 13. In this case, the opening / closing member 4 is locked in the second open position. Therefore, when the elastic force of the protrusion 66 is strong, when the lock by the holding mechanism 5 is released, the opening / closing member 4 is bounced up to the second open position and automatically locked in that position. Depending on the elasticity of the protrusion 66, the opening / closing member 4 may be raised to near the second position, but may not be locked and may return to the first open position and be held at the first open position. Such an adjustment can be made by changing the shape or material of the protrusion 66. For example, if the height of the protrusion 66 is increased, the opening / closing member 4 is pressed more strongly when it is in the closed position, and the restoring force of the protrusion 66 increases.

[0054] (3) The shapes of the main body 3, the recess 7, and the like of the lid 2 shown in the above embodiment are merely examples and can be modified as appropriate.

[0055] (4) The air hole 77 is not necessarily required, but may be provided as appropriate to make it easier to dispense the beverage from the spout 75.

[0056] (5) The structure of the holding mechanism 5 is not limited to the one described above. In the above embodiment, the lock is released by pushing the lower end of the operating part 52 backward after sliding the operating part 52 downward, but it is sufficient that the lock is released by operating the operating part 52 multiple times in multiple directions. This makes it possible to prevent the lock by the holding mechanism 5 from being released easily. Furthermore, the holding mechanism 5 may have a configuration other than those described above, and it is sufficient that the holding mechanism 5 is configured to at least hold the opening / closing member 4 in the closed position.

[0057] (6) In the sealing member 6, the first to fifth portions 61 to 65 are integrally formed, but these may be separated into a plurality of portions. Furthermore, the sealing member 6 is not necessarily required, and it is sufficient if the dimensions are designed so that when the spout 75 and the first closing portion 43, the air hole 77 and the second closing portion 44, etc., come into contact with each other, they are sealed.

[0058] (7) The shape of the container body 1 is not particularly limited, and it is sufficient that an opening is formed at the top so that a liquid such as a beverage can be contained. Therefore, it can be in various shapes such as a circle or a polygon when viewed from above. In addition, it is sufficient that the container body 1 and the lid body 2 can be connected detachably, and a connecting structure other than the male screw 15 and the second rib 33 described above can be used. For example, a connecting structure such as a screw can be used. [Explanation of symbols]

[0059] 1: Container body 2: Lid 3: Main body 4: Opening and closing parts 5: Retention mechanism 6: Sealing material 66:Protruding part (holding part) 11: Top opening 11:Aperture 21: Main body 41: Main body 52:Operation unit 61: First part (first seal part) 63: Third section (second seal section) 64: 4th part (3rd seal part) 75: Spout 77: Air hole

Claims

1. A lid for closing an upper opening of a container body for containing a liquid, a main body portion which detachably closes an upper opening of the container body and has a spout for pouring the liquid formed therein; an opening / closing member having a first end and a second end opposite to the first end, the first end being attached to the main body so as to swing between a closed position that closes the spout and a first open position that opens the spout; a holding mechanism capable of holding the opening / closing member in the closed position by engaging with a second end of the opening / closing member; a holding portion provided on the main body portion and capable of elastic deformation; Equipped with A lid body, wherein the retaining portion retains the opening / closing member in the first open position, and when the opening / closing member is displaced from the first open position to a closed position, the opening / closing member presses the retaining portion to be accommodated between the opening / closing member and the main body portion.

2. The main body has an air hole formed therein, The lid according to claim 1 , wherein the opening / closing member is configured to close the air hole when in the closed position and to open the air hole when in the first open position.

3. a first seal portion that seals between the lid body and the main body; a second seal portion that seals between the spout and the opening / closing member when the opening / closing member is in the closed position; a third seal portion that seals between the air hole and the opening / closing member when the opening / closing member is in the closed position; and The holding portion, The lid according to claim 1 or 2, further comprising a seal member integrally formed therewith.

4. The opening / closing member is configured to be able to swing from the first open position to a second open position at a swing angle greater than that of the first open position, The lid according to claim 1 , wherein the opening / closing member is configured to be locked in the second open position.

5. The lid body according to claim 4, wherein when the opening / closing member is in the closed position and the holding mechanism releases the holding of the opening / closing member, the opening / closing member moves to the second open position by the elastic force of the holding portion.

6. The holding mechanism has an operation unit, The operation unit is configured to be displaceable to a position A, a position B, and a position C, When the operating portion is in the position A, the opening / closing member is held in the closed position, The lid body according to claim 1, wherein the operating portion is configured to release the holding of the opening / closing member in the closed position by displacing the operating portion from position A in a first direction to position B, and then displacing the operating portion from position B in a second direction different from the first direction to position C.

7. A lid body according to claim 1 or 2, The container body, A container comprising:

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