Discharge cap

Abstract

To provide a discharge cap allowed to inhibit a content liquid from flying out and dripping.SOLUTION: A discharge cap 4, being of a discharge cap 4 to be attached to a mouth 3a of a container 3 and having a discharge cylinder 6b and a depression part 6c so that, by a push-down operation to the depressing part 6c in a state where the container 3 (discharge container 1) is inclined, a content liquid 2 is discharged from the discharge cylinder 6b, comprises a base part 7 that is to be held on the mouth 3a, a swing part 5b that has a to-be depressed part 5b1 to be pushed down by the depressing part 6c and a liquid-operating portion 5b2 to be swung up by pushing down the to-be depressed part 5b1 and is held to swing by the base part 7, and an urging part 8 that urges the swing part 5b to go from a depression state that the liquid-operating portion 5b2 stays in the discharge cylinder 6b into an initial state that the liquid-operating portion 5b2 stays lower than in the depression state. The liquid-operating portion 5b2, in the initial state, stays at one or whole part of the liquid-operating portion 5b2 inside a lower end of the discharge cylinder 6b in bottom view and, in the depression state, allows the content liquid 2 to be discharged from internal of the container 3 through the discharge cylinder 6b.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a discharge cap.

Background Art

[0002] There is known a discharge cap that is attached to the mouth of a container, has a discharge cylinder and a pressing part, and discharges the content liquid in the container from the discharge cylinder by pressing the pressing part while the container is tilted (see, for example, Patent Document 1). According to such a discharge cap, an appropriate amount of the content liquid can be easily discharged by pressing the pressing part.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Preferably, in the discharge cap as described above, the content liquid does not splash out just by tilting the container, and there is no dripping of the liquid from the discharge cylinder after discharge.

[0005] Therefore, an object of the present invention is to provide a discharge cap that can suppress the splashing out and dripping of the content liquid.

Means for Solving the Problems

[0006] One aspect of the present invention is as follows.

[0007] [1] A discharge cap that is attached to the mouth of a container, has a discharge cylinder and a pressing part, and discharges the content liquid in the container from the discharge cylinder by pressing the pressing part while the container is tilted, a base part held by the mouth of the container, and A pressed part that is pressed by the pressing part during the pressing operation, and a liquid operation part that swings upward when the pressed part is pressed, and a swinging part that is supported by the base part so as to be swingable in the vertical direction. An urging part that urges the swinging part so that the liquid operation part changes from a pressed state where the liquid operation part is located in the discharge cylinder to an initial state where the liquid operation part is located below the pressed state. In the initial state, part or all of the liquid operation part is located inside the lower end of the discharge cylinder in a bottom view, and in the pressed state, the content liquid is allowed to be discharged from the container through the discharge cylinder. The discharge cap.

[0008] [2] The urging part is constituted by the pressing part that is elastically deformed by the pressing operation and pushes up the pressed part by the restoring force from the elastic deformation when the pressing operation is released. The discharge cap according to [1].

[0009] [3] The pressing part includes a linear first bending part, a second bending part, a third bending part, and a fourth bending part that extend side by side with the swing axis of the swinging part, a first wall part that extends from the first bending part to the second bending part, a second wall part that extends from the second bending part to the third bending part, and a third wall part that extends from the third bending part to the fourth bending part. In the initial state, the first bending part forms a mountain fold shape in the bottom view, the second bending part forms a valley fold shape, the third bending part forms a mountain fold shape, the fourth bending part forms a valley fold shape. By the pressing operation on the upper surface of the first wall part, the second wall part and the third wall part are folded through the third bending part, and when the pressing operation is released, the second wall part and the third wall part return from the folded state, and the second wall part pushes up the pressed part of the swinging part to return the swinging part to the initial state. The discharge cap according to [2].

[0010] [4] It has an inner stopper having the swinging part and a hinge cap. The hinge cap has a mounting cylinder portion mounted on the mouth portion, a top wall portion having the discharge cylinder and the pressing portion and connected to the mounting cylinder portion, and an upper lid rotatably connected to the mounting cylinder portion via a hinge portion. The upper lid is the discharge cap according to [3], which pushes up the second wall portion to bring the swing portion into the initial state when the lid is closed with the second wall portion and the third wall portion folded.

[0011] [5] The biasing portion is constituted by a connecting portion that integrally connects the swing portion to the base portion and is torsionally deformed by the swing of the swing portion from the initial state, and is the discharge cap according to any one of [1] to [4].

[0012] [6] The liquid operation portion has a cylindrical body having an inner peripheral surface that forms a throttle portion of a flow path for discharging the content liquid in the pressed state of the swing portion by the pressing operation in the state where the container is tilted, and is the discharge cap according to any one of [1] to [5].

[0013] [7] The liquid operation portion has a cylindrical body having an inner peripheral surface that forms a part of a flow path for discharging the content liquid in the pressed state of the swing portion by the pressing operation in the state where the container is tilted, and a protruding portion that protrudes upward from the upper end portion of the cylindrical body. In the pressed state, the cylindrical body and the protruding portion are located in the discharge cylinder, and is the discharge cap according to any one of [1] to [6].

Advantages of the Invention

[0014] According to the present invention, it is possible to provide a discharge cap that can suppress the ejection and dripping of the content liquid.

Brief Description of the Drawings

[0015]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Mode for Carrying Out the Invention

[0016] Hereinafter, embodiments of the present invention will be illustrated and described with reference to the drawings.

[0017] As shown in FIGS. 1 to 4, in the first embodiment of the present invention, the discharge container 1 has a container 3 that stores the content liquid 2 and a discharge cap 4 attached to the mouth portion 3a of the container 3. The discharge cap 4 has an inner stopper 5 and a hinge cap 6. The inner stopper 5 has an inner stopper body 5a and a swing part 5b. The hinge cap 6 has a mounting cylinder part 6a, a top wall part 6d having a discharge cylinder 6b and a pressing part 6c, and an upper lid 6e. The base part 7 is constituted by the inner stopper body 5a, the mounting cylinder part 6a, and the top wall part 6d, and the urging part 8 is constituted by the pressing part 6c and the connecting part 5a1.

[0018] The container 3 has a mouth portion 3a and a body portion 3b connected to the lower end of the mouth portion 3a, and forms an accommodation space 3c for accommodating the content liquid 2 inside. The accommodation space 3c communicates with an opening 3a1 formed by the mouth portion 3a. The material of the container 3 is not particularly limited, and examples thereof include resin and glass. The content liquid 2 is not particularly limited, but in this embodiment, it is a food such as salad oil or flavor oil. Also, the viscosity of the liquid as the content liquid 2 is not particularly limited.

[0019] In the present embodiment, the vertical direction is the direction along the central axis O of the mouth portion 3a, the upward direction is the direction from the body portion 3b of the container 3 toward the mouth portion 3a along the vertical direction, the downward direction is the opposite direction of the upward direction, the radial direction is the direction orthogonal to the central axis O, and the circumferential direction is the direction around the central axis O.

[0020] The discharge cap 4 is attached to the mouth portion 3a of the container 3, has a discharge cylinder 6b and a pressing portion 6c, and is a discharge cap 4 that discharges the content liquid 2 in the container 3 from the discharge cylinder 6b by a pressing operation (see the thick arrow in FIG. 3) on the pressing portion 6c in a state where the container 3 (discharge container 1) is tilted (see FIG. 3). The discharge cap 4 includes a base portion 7 held by the mouth portion 3a of the container 3, a portion to be pressed 5b1 that is pushed down by the pressing portion 6c during the pressing operation, and a liquid operation portion 5b2 that swings upward (see the white arrow in FIG. 3) when the portion to be pressed 5b1 is pushed down. The liquid operation portion 5b2 has a swing portion 5b that is supported by the base portion 7 so as to be swingable in the vertical direction. The liquid operation portion 5b2 is in an initial state (the state shown in FIGS. 1 to 2 and 4) where the liquid operation portion 5b2 is located below the pressed state from the pressed state where the liquid operation portion 5b2 is located inside the lower end portion of the discharge cylinder 6b in a bottom view (see FIG. 2). The discharge cap 4 has a biasing portion 8 that biases the swing portion 5b so that the liquid operation portion 5b2 is located below the pressed state. In the initial state, a part or all (substantially all in the present embodiment) of the liquid operation portion 5b2 is located inside the lower end portion of the discharge cylinder 6b in a bottom view (see FIG. 2), and in the pressed state, it allows the content liquid 2 to be discharged from the container 3 through the discharge cylinder 6b.

[0021] According to the above configuration, when the discharge container 1 is tilted, the liquid operation part 5b2 in the initial state can prevent the content liquid 2 from spilling out from the discharge cylinder 6b (because a part or all of the liquid operation part 5b2 is located inside the lower end part of the discharge cylinder 6b in a bottom view, which becomes an obstacle). Next, by pressing the pressing part 6c, an appropriate amount of the content liquid 2 corresponding to the pressurization in the container 3 by the pressing operation can be easily discharged while the liquid operation part 5b2 is in a pressed state where it is located in the discharge cylinder 6b through the part to be pressed 5b1. Then, when the pressing operation is released and the discharge container 1 is returned to the upright position (see FIG. 4), the biasing part 8 causes the swinging part 5b to return from the pressed state to the initial state, so that the liquid operation part 5b2 can draw in (suck back) the content liquid 2 in the discharge cylinder 6b while descending in the discharge cylinder 6b (see the white arrow in FIG. 4). Therefore, it is possible to suppress dripping of the liquid from the discharge cylinder 6b. Accordingly, it is possible to realize the discharge cap 4 that can suppress the spilling out and dripping of the content liquid 2.

[0022] The biasing part 8 is constituted by the pressing part 6c (and the connecting part 5a1 described later) which is elastically deformed by the pressing operation (see FIG. 3) and pushes up the part to be pressed 5b1 by the restoring force from the elastic deformation when the pressing operation is released (see FIG. 4). According to the above configuration, the swinging part 5b can be returned from the pressed state to the initial state by using the restoring force from the elastic deformation of the pressing part 6c.

[0023] As a specific structure therefor, in the present embodiment, the pressing portion 6c includes a linear first bending portion 6c1, a second bending portion 6c2, a third bending portion 6c3, and a fourth bending portion 6c4 that extend side by side with the rocking axis P of the rocking portion 5b, a first wall portion 6c5 that extends from the first bending portion 6c1 to the second bending portion 6c2, a second wall portion 6c6 that extends from the second bending portion 6c2 to the third bending portion 6c3, and a third wall portion 6c7 that extends from the third bending portion 6c3 to the fourth bending portion 6c4. In the initial state, in a bottom view, the first bending portion 6c1 is in a mountain-fold shape (convex downward), the second bending portion 6c2 is in a valley-fold shape (convex upward), the third bending portion 6c3 is in a mountain-fold shape, and the fourth bending portion 6c4 is in a valley-fold shape. By a pressing operation on the upper surface of the first wall portion 6c5, the portion 5b1 to be pressed is pushed down by the first wall portion 6c5, and the second wall portion 6c6 and the third wall portion 6c7 are folded via the third bending portion 6c3 (see FIG. 3). When the pressing operation is released, the second wall portion 6c6 and the third wall portion 6c7 return from the folded state, and the second wall portion 6c6 pushes up the portion 5b1 to be pressed of the rocking portion 5b, thereby bringing the rocking portion 5b back to the initial state (see FIG. 4). Further, in the present embodiment, the pressing portion 6c has a pressing rib 6c8 that extends downward from the first wall portion 6c5 and pushes down the portion 5b1 to be pressed by a pressing operation on the upper surface of the first wall portion 6c5.

[0024] The discharge cap 4 has an inner stopper 5 having a swing portion 5b and a hinge cap 6. The hinge cap 6 has a mounting cylinder portion 6a to be mounted on the mouth portion 3a, a discharge cylinder 6b and a pressing portion 6c, and a top wall portion 6d connected to the mounting cylinder portion 6a, and an upper lid 6e rotatably connected around a rotation axis Q to the mounting cylinder portion 6a via a hinge portion 6f. When the upper lid 6e is closed in a state where the second wall portion 6c6 and the third wall portion 6c7 are folded due to some cause such as sticking of the content liquid 2 (see Fig. 3), the upper lid 6e has a rib-shaped contact portion 6e1 that contacts the second wall portion 6c6 during closing and pushes up the second wall portion 6c6 to bring the swing portion 5b to an initial state. According to the above configuration, the pressing portion 6c and the swing portion 5b can be more reliably returned to the initial state by the closing operation. In this embodiment, the rotation axis Q is substantially parallel to the swing axis P, and the swing axis P extends in a direction perpendicular to the vertical direction along the central axis O. The mounting cylinder portion 6a is configured to be mounted on the mouth portion 3a by screwing in this embodiment, but is not limited thereto. For example, it may be configured to be mounted on the mouth portion 3a by caulking.

[0025] As shown by the two-dot chain line in Fig. 1, the upper lid 6e has a top wall 6e2, an outer peripheral wall 6e3 extending downward from the outer peripheral portion of the top wall 6e2 and connected to the hinge portion 6f at the lower end, and a plug body 6e4 extending downward from the top wall 6e2. The plug body 6e4 contacts the inner peripheral surface of the discharge cylinder 6b in the closed state and seals the discharge cylinder 6b. According to this embodiment, due to the aforementioned sacking back, the content liquid 2 remaining in the discharge cylinder 6b is reduced. Therefore, when the lid is closed, it is possible to suppress the content liquid 2 from overflowing from the discharge cylinder 6b as the plug body 6e4 is inserted into the discharge cylinder 6b. The rib-shaped contact portion 6e1 extends downward from the top wall 6e2. The inner peripheral surface of the discharge cylinder 6b has a sealing surface 6b1 that contacts the plug body 6e4, and a diameter-expanded surface 6b2 that expands in diameter from the lower end of the sealing surface 6b1 and extends downward to receive the liquid operation portion 5b2 in the radial inner side in the pressed state.

[0026] The middle plug 5 has a middle plug body 5a attached to the mouth part 3a. The middle plug body 5a has a central opening 5a2 where a swing part 5b is arranged. The swing part 5b has a bent plate part 5b3 that bends convex upward with the swing axis P as the boundary, a pressed part 5b1 provided on one side of the swing axis P in a bottom view and connected to the bent plate part 5b3, and a liquid operation part 5b2 provided on the other side of the swing axis P in a bottom view and connected to the bent plate part 5b3. The pressed part 5b1 is in the shape of a rib that extends upward from the bent plate part 5b3 while decreasing in thickness. The upper end of the pressed part 5b1 pushed down by the pressing part 6c is located on one side of the swing axis P in a bottom view. The swing part 5b is integrally connected via a connecting part 5a1 of the middle plug body 5a. The connecting part 5a1 is composed of a pair of connecting bodies 5a3 provided on the swing axis P so as to sandwich the swing part 5b. A gap 5a4 that extends substantially over the entire circumference except for the connecting part 5a1 and through which the content liquid 2 can pass is provided between the outer peripheral edge of the swing part 5b in a bottom view and the inner peripheral surface of the middle plug body 5a.

[0027] The liquid operation part 5b2 has a cylindrical body 5b4 having an inner peripheral surface that forms a throttle part 9a of a flow path 9 for discharging the content liquid 2 in a pressed state of the swing part 5b by a pressing operation in a state where the container 3 (discharge container 1) is tilted. According to the above configuration, by appropriately presetting the throttle part 9a in accordance with the viscosity of the content liquid 2, etc., it is possible to easily suppress the content liquid 2 from splashing out when the discharge container 1 is tilted. The bent plate part 5b3 is integrally connected to an end part or the like on the outer peripheral surface of the cylindrical body 5b4. The content liquid 2 that has been sucked back after discharge is returned to the storage space 3c through the throttle part 9a and the gap 5a4.

[0028] The biasing part 8 is composed of a connecting part 5a1 (and the aforementioned pressing part 6c) that is integrally connected to the base part 7 (middle plug body 5a) and is torsionally deformed by the swing of the swing part 5b from the initial state. According to the above configuration, when the pressing operation on the pressing part 6c is released, the swing part 5b can be returned from the pressed state to the initial state by utilizing the restoring force from the torsional deformation of the connecting part 5a1.

[0029] The middle plug body 5a has a seal cylinder 5a5 that contacts the inner peripheral surface of the mouth portion 3a, an annular portion 5a6 that extends radially outward from the upper end portion of the seal cylinder 5a5 and is held between the lower surface of the top wall portion 6d and the upper surface of the mouth portion 3a, and a connection wall portion 5a7 that extends radially inward from the seal cylinder 5a5, forms a central opening 5a2, and is continuous with the connection portion 5a1. The annular portion 5a6 is held by the hinge cap 6 (the inner peripheral surface of the mounting cylinder portion 6a and the lower surface of the top wall portion 6d) by fitting.

[0030] In this embodiment, the middle plug 5 and the hinge cap 6 are each integrally formed, but the present invention is not limited to this, and they may be configured by assembling a plurality of members. The middle plug 5 and the hinge cap 6 are each formed, for example, of resin by injection molding, for example.

[0031] As in the second embodiment shown in FIGS. 5 to 6, the liquid operation portion 5b2 has a cylindrical body 5b4 having an inner peripheral surface that forms a part of a flow path 9 for discharging the content liquid 2 in a depressed state of the swing portion 5b (see FIG. 6) by a pressing operation in a state where the container 3 (discharge container 1) is tilted, and a protruding portion 5b5 that protrudes upward from the upper end portion of the cylindrical body 5b4. In the depressed state, the cylindrical body 5b4 and the protruding portion 5b5 may be configured to be located within the discharge cylinder 6b. According to the above configuration, while allowing the content liquid 2 to be discharged from the container 3 through the discharge cylinder 6b in the depressed state, when returning from the depressed state to the initial state (see FIG. 5), not only the cylindrical body 5b4 but also the protruding portion 5b5 can draw in the content liquid 2 in the discharge cylinder 6b, so that better suck-back can be achieved than when only the cylindrical body 5b4 is used. The protruding portion 5b5 has a protruding portion main body 5b6 that is located radially inside the seal surface 6b1 in the depressed state, and a plurality of leg portions 5b7 that connect the lower end portion of the protruding portion main body 5b6 and the upper end portion of the cylindrical body 5b4, and a part of the flow path 9 is formed between the plurality of leg portions 5b7.

[0032] Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and the above-described embodiments can be variously modified without departing from the gist of the present invention.

Explanation of Reference Numerals

[0033] 1 Discharging container 2 Content liquid 3 Container 3a Mouth part 3a1 Opening 3b Barrel part 3c Accommodation space 4 Discharging cap 5 Inner stopper 5a Inner stopper body 5a1 Connecting part 5a2 Central opening 5a3 Connecting body 5a4 Gap 5a5 Sealing cylinder 5a6 Annular part 5a7 Connecting wall part 5b Swing part 5b1 Pressed part 5b2 Liquid operation part 5b3 Bending plate part 5b4 Cylindrical body 5b5 Protruding part 5b6 Protruding part body 5b7 Leg part 6 Hinge cap 6a Mounting cylinder part 6b Discharging cylinder 6b1 Sealing surface 6b2 Diameter-expanded surface 6c Pressed part 6c1 First bending part 6c2 Second bending part 6c3 Third bending part 6c4 Fourth bending part 6c5 First wall part 6c6 Second wall part 6c7 Third wall part 6c8 Pressing rib 6d Top wall part 6e Upper lid 6e1 Contact part 6e2 Top wall 6e3 Outer peripheral wall 6e4 Plug body 6f Hinge part 7 Base part 8 Biasing part 9 Flow path 9a Throttle part O Central axis P rocking axis Q rotation axis

Claims

1. A discharge cap that is attached to the mouth of a container, has a discharge tube and a pressing part, and discharges the content liquid in the container from the discharge tube by pressing the pressing part in a state where the container is tilted, a base part held at the mouth of the container, a swinging part having a part to be pressed that is pushed down by the pressing part during the pressing operation and a liquid operation part that swings upward when the part to be pressed is pushed down, and is supported by the base part so as to be swingable in the vertical direction, and a biasing part that biases the swinging part so that the liquid operation part changes from a pressed state where it is located inside the discharge tube to an initial state where the liquid operation part is located below the pressed state. In the initial state, part or all of the liquid operation part is located inside the lower end of the discharge tube when viewed from the bottom, and in the pressed state, the content liquid is allowed to be discharged from the container through the discharge tube. The discharge cap.

2. The discharge cap according to claim 1, wherein the biasing part is constituted by the pressing part that is elastically deformed by the pressing operation and pushes up the part to be pressed by the restoring force from the elastic deformation when the pressing operation is released.

3. The pressing part has linear first bending part, second bending part, third bending part and fourth bending part that extend side by side with the swing axis of the swinging part, a first wall part that extends from the first bending part to the second bending part, a second wall part that extends from the second bending part to the third bending part, and a third wall part that extends from the third bending part to the fourth bending part. In the initial state, the first bending part forms a mountain fold shape when viewed from the bottom, the second bending part forms a valley fold shape, the third bending part forms a mountain fold shape, and the fourth bending part forms a valley fold shape. By pressing the upper surface of the first wall part, the second wall part and the third wall part are folded via the third bending part, and when the pressing operation is released, the second wall part pushes up the part to be pressed of the swinging part while returning from the folded state, thereby returning the swinging part to the initial state. The discharge cap according to claim 2.

4. It has an inner stopper having the swinging part and a hinge cap, The hinge cap has a mounting cylinder part mounted on the mouth, a top wall part having the discharge tube and the pressing part and continuous with the mounting cylinder part, and an upper lid rotatably continuous with the mounting cylinder part via a hinge part. The discharge cap according to claim 3, wherein the upper lid pushes up the second wall portion to bring the swing portion to the initial state when the lid is closed with the second wall portion and the third wall portion folded.

5. The discharge cap according to claim 1, wherein the biasing portion is constituted by a connecting portion that integrally connects the swing portion to the base portion and is torsionally deformed by the swing of the swing portion from the initial state.

6. The discharge cap according to claim 1, wherein the liquid operation portion has a cylindrical body having an inner peripheral surface that forms a throttle portion of a flow path for discharging the content liquid in the pressed state of the swing portion by the pressing operation in the state where the container is tilted.

7. The discharge cap according to claim 1, comprising: a cylindrical body having an inner peripheral surface that forms a part of a flow path for discharging the content liquid in the pressed state of the swing portion by the pressing operation in the state where the container is tilted; and a protruding portion that protrudes upward from an upper end portion of the cylindrical body, wherein the cylindrical body and the protruding portion are located in the discharge cylinder in the pressed state.

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