Discharge device and discharge container

Abstract

To provide a dispensing tool that can easily open and close the nozzle and a dispensing container using this tool.SOLUTION: A dispensing tool 1 according to the present invention has: a mounting cap 10; a head part 20; a nozzle 40; a first check valve 50 disposed at an outlet 35 provided in the head part 20; a second check valve 60 disposed at an inlet 10d provided in the mounting cap 10; and an elastic deformation part 32c provided in the head part 20. The nozzle 40 has: a rotating body 42 which is rotatably mounted on the head part 20 about the rotary axis RA, and in which an inlet side opening end 41a of the discharge hole 41 is disposed eccentrically with respect to the rotary axis RA; and a convex portion 43 provided on the head portion 20 eccentrically with respect to the rotary axis RA and arranged circumferentially displaced with respect to the inlet side opening end 41a when the rotary body 42 is in the open position, and abutting the inlet side opening end 41a over the entire circumference to close the discharge hole 41 when the rotary body 42 is in the closed position. A dispensing container 2 provided with the dispensing tool is also provided.SELECTED DRAWING: Figure 4

Description

Technical Field

[0004] , ,

[0005] , ,

[0001] The present invention relates to a discharging tool and a discharging container that are attached to the mouth of a container body and discharge the contents stored in the container body.

Background Art

[0002] As a discharging tool that is attached to the mouth of a container body and discharges the contents stored in the container body, there is a pump provided with a mounting cap attached to the mouth of the container body, a cylinder held by the mounting cap, and a piston disposed inside the cylinder, a head portion connected to the piston, and a nozzle communicating with the inside of the cylinder via an umbrella-shaped elastic valve. When the head portion is pushed down, the pump operates and the contents stored in the container body are discharged from the nozzle. A pump-type one configured as such is known (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in a configuration in which the nozzle is closed by an umbrella-shaped elastic valve, a three-point valve, or a ball valve, like the conventional pump-type discharging tool described above, there is a problem that during non-use such as during distribution, the valve may open due to vibration, impact, etc., and the contents may leak out from the nozzle to the outside.

[0005] In contrast, it is conceivable to close the nozzle by attaching a cap to the tip of the nozzle or attaching a seal such as a film. However, this method has a problem that it is necessary to attach a cap, a seal, etc. to the nozzle and remove them during use, and the operation is complicated.

[0006] The present invention was developed to solve these problems, and its objective is to provide a dispensing device that allows the nozzle to be easily opened and closed, and a dispensing container using the same. [Means for solving the problem]

[0007] The discharge device of the present invention comprises a mounting cap attached to the mouth of a container body; a head portion supported by the mounting cap and having a top wall portion and a cylindrical peripheral wall; a nozzle having a discharge hole communicating with an outlet provided in the head portion; a first check valve positioned at the outlet portion that prevents the flow of contents from the discharge hole toward the interior of the head portion and allows the flow of contents from the interior of the head portion toward the discharge hole; a second check valve positioned at the inlet provided in the mounting cap that prevents the flow of contents from the interior of the head portion toward the interior of the container body and allows the flow of contents from the interior of the container body toward the interior of the head portion; and a head portion provided that reduces the volume of the head portion when the top wall portion is pressed down. The nozzle is characterized by having an elastically deformable part that elastically deforms to cause the head part to function as a pump, the nozzle being rotatably mounted on the head part about a pivot axis, having a discharge hole and an inlet-side opening end of the discharge hole facing the outlet side which is eccentrically positioned with respect to the pivot axis, and a convex part that protrudes from the outlet side toward the discharge hole side and is provided on the head part eccentrically with respect to the pivot axis, is positioned circumferentially offset from the inlet-side opening end when the rotating part is in the open position, and abuts the inlet-side opening end over its entire circumference to close the discharge hole when the rotating part is in the closed position which is rotated by a predetermined angle from the open position about the pivot axis.

[0008] The discharge port of the present invention is A mounting cap fitted to the mouth of the container body; a head portion having a top wall portion and a cylindrical peripheral wall, supported by the mounting cap; a nozzle having a discharge hole communicating with an outlet provided in the head portion; a first check valve positioned at the outlet, which prevents the flow of contents from the discharge hole toward the interior of the head portion and allows the flow of contents from the interior of the head portion toward the discharge hole; a second check valve positioned at the inlet provided in the mounting cap, which prevents the flow of contents from the interior of the head portion toward the interior of the container body and allows the flow of contents from the interior of the container body toward the interior of the head portion; and an elastic deformation portion provided in the head portion, which elastically deforms to reduce the volume of the head portion when the top wall portion is pushed down, thereby allowing the head portion to function as a pump; wherein the nozzle is rotatably mounted on the head portion about a pivot axis, and the discharge hole is provided, with the inlet-side opening end of the discharge hole facing the outlet side positioned eccentrically with respect to the pivot axis; Between the rotating body and the first check valve Placed , valve retainer that holds the first check valve and , The valve retainer is provided with a convex portion that protrudes from the outlet side toward the discharge hole side and is eccentric with respect to the pivot axis, and is positioned circumferentially offset from the inlet side opening end when the pivot body is in the open position, and when the pivot body is in the closed position, having rotated by a predetermined angle from the open position around the pivot axis, it abuts against the inlet side opening end over its entire circumference and closes the discharge hole. .

[0009] In the discharge device of the present invention, it is preferable that the valve retainer is provided with a pair of protrusions arranged symmetrically on either side of the pivot axis, the rotating body is provided with three recesses arranged at equal intervals in the circumferential direction with respect to the inlet-side opening end with respect to the pivot axis, the tips of the pair of protrusions are positioned in the recesses when the rotating body is in the open position, and when the rotating body is in the closed position, one of the protrusions abuts the inlet-side opening end over its entire circumference and the other protrusion is positioned in the recess.

[0010] In the discharge device of the present invention, it is preferable that the convex portion is formed in a bendable columnar shape, the rotating body has an inclined wall between the inlet-side opening end and the valve retainer, and when the rotating body is in the open position, the convex portion bends along the inclined wall and moves away from the inlet-side opening end, and when the rotating body is in the closed position, the convex portion extends straight without contacting the inclined wall and contacts the inlet-side opening end over its entire circumference.

[0011] The discharge container of the present invention is characterized by comprising the container body and any of the above-mentioned discharge devices. [Effects of the Invention]

[0012] According to the present invention, it is possible to provide a dispensing device that allows the nozzle to be easily opened and closed, and a dispensing container using the same. [Brief explanation of the drawing]

[0013] [Figure 1] This is a cross-sectional view of a discharge container equipped with a discharge device according to one embodiment of the present invention. [Figure 2] Figure 1 is a cross-sectional view of the discharge container in a side view, showing the top wall being pressed down to discharge the contents. [Figure 3] Figure 1 is a cross-sectional side view of the discharge container after the top wall has been pressed down to discharge the contents, and then the pressure on the top wall has been released. [Figure 4]It is a perspective view of the nozzle shown in FIG. 1 in the open position. [Figure 5] It is a front view of the nozzle shown in FIG. 4. [Figure 6] It is an enlarged cross-sectional view of the nozzle portion of the discharge container shown in FIG. 1 in a state where the nozzle is in the open position. [Figure 7] It is a perspective view of the nozzle shown in FIG. 1 in the closed position. [Figure 8] It is a front view of the nozzle shown in FIG. 7. [Figure 9] It is an enlarged cross-sectional view of the nozzle portion of the discharge container shown in FIG. 1 in a state where the nozzle is in the closed position. [Figure 10] It is a cross-sectional view taken along line A-A in FIG. 9. [Figure 11] It is a front view of the nozzle according to the modified example in the open position. [Figure 12] It is an enlarged cross-sectional view of the nozzle portion of the discharge container provided with the nozzle according to the modified example shown in FIG. 11 in a state where the nozzle is in the open position. [Figure 13] It is a front view of the nozzle according to the modified example shown in FIG. 11 in the closed position. [Figure 14] It is an enlarged cross-sectional view of the nozzle portion of the discharge container provided with the nozzle according to the modified example shown in FIG. 11 in a state where the nozzle is in the closed position. [Figure 15] It is a cross-sectional view in a side view of the discharge container provided with the discharger according to another embodiment. [Figure 16] It is a cross-sectional view in a side view of the discharge container according to another embodiment shown in FIG. 15 in a state where the top wall portion is pushed down to discharge the content.

Mode for Carrying Out the Invention

[0014] Hereinafter, the discharger 1 and the discharge container 2 according to an embodiment of the present invention will be described in detail with reference to the drawings.

[0015] [[ID=]] In this embodiment and in the claims, the vertical direction refers to the vertical direction when the discharge container 2 is in an upright position, as shown in Figure 1.

[0016] As shown in Figure 1, the dispensing device 1 is assembled to the container body 3. The dispensing container 2 is composed of the dispensing device 1 and the container body 3.

[0017] As the container body 3, for example, a blow-molded bottle made of synthetic resin material can be used, which has a cylindrical mouth 3a and a bottomed cylindrical body 3b connected to the mouth 3a. A male screw 3c is integrally provided on the outer surface of the mouth 3a.

[0018] Furthermore, the container body 3 may have various configurations with different shapes, materials, and manufacturing methods, as long as it has a mouth 3a and is capable of storing contents inside. For example, the container body 3 can be a laminated peel-off container in which an inner layer is peelably laminated inside an outer layer, and the inner layer peels off from the outer layer and deforms in volume as the liquid contents are discharged, or a tray-rising type container in which a tray (piston) is movably incorporated inside a cylindrical container body formed by injection molding, and the piston rises when the inside of the container body becomes negatively pressurized as the liquid contents are discharged, and so on, in which configurations that do not take in outside air into the internal space (storage part) that stores the liquid contents.

[0019] The discharge device 1 includes a mounting cap 10 that is attached to the mouth 3a of the container body 3. More specifically, the mounting cap 10 is a top-cylindrical shape having a cylindrical peripheral wall portion 10a and a top wall portion 10b centered on an axis O, and an internal thread 10c is integrally provided on the inner surface of the peripheral wall portion 10a. In addition, an inlet 10d is provided at the axis of the top wall portion 10b, which penetrates the top wall portion 10b in the vertical direction.

[0020] The mounting cap 10 is removably attached to the opening 3a of the container body 3 by screwing its female thread 10c to a male thread 3c provided on the opening 3a of the container body 3. When the mounting cap 10 is attached to the opening 3a of the container body 3, the dispensing device 1 is assembled to the container body 3.

[0021] Furthermore, the mounting cap 10 is not limited to being attached to the opening 3a of the container body 3 by a screw connection between a male thread 3c and a female thread 10c. It can also be attached to the opening 3a of the container body 3 by other means, such as a capping method using an undercut engagement. In addition, the shape of the mounting cap 10 can be changed in various ways as long as it can be attached to the opening 3a of the container body 3.

[0022] The mounting cap 10 can also be configured to have a tube holder 10e integrally attached to the lower surface of the top wall portion 10b. The tube holder 10e is cylindrical and communicates with the inlet 10d at its upper end. A suction tube 20 is fitted and fixed to the tube holder 10e. The suction tube 20 communicates with the inlet 10d and extends downward from the tube holder 10e, with its lower end (not shown) close to the bottom of the inside of the container body 3.

[0023] A support portion 10f is integrally provided on the upper surface of the top wall portion 10b of the mounting cap 10. The support portion 10f is cylindrical in shape, coaxial with the peripheral wall portion 10a and having a smaller diameter than the peripheral wall portion 10a, and extends upward from the top wall portion 10b.

[0024] The discharge device 1 includes a head portion 30. The head portion 30 comprises a top wall portion 31 and a cylindrical peripheral wall 32, and is supported by the mounting cap 10. In this embodiment, the peripheral wall 32 has an upper portion 32a and a lower portion 32b that are cylindrical and coaxial with the peripheral wall portion 10a and the support portion 10f, and is configured to have a bellows-shaped elastic deformation portion 32c between the upper portion 32a and the lower portion 32b that can be elastically deformed to expand and contract in the direction of axis O.

[0025] The lower portion 32b of the peripheral wall 32 is fitted around the entire circumference inside the support portion 10f of the mounting cap 10, thereby supporting the head portion 30 on the support portion 10f of the mounting cap 10. The lower portion of the head portion 30 is closed off by the top wall portion 10b, and it functions as a tank capable of storing contents flowing in from the inlet 10d provided in the top wall portion 10b in its internal space S. The top wall portion 31 and peripheral wall 32 of the head portion 30 can be integrally formed from, for example, polyethylene resin or polypropylene resin.

[0026] The head portion 30 may also be configured with a cylindrical portion 33. The cylindrical portion 33 is cylindrical in diameter larger than the peripheral wall 32 and is provided integrally with the peripheral wall 32 on the outside of the lower portion 32b of the peripheral wall 32 via a flange-like portion 34. The cylindrical portion 33 also has the function of fitting onto the outer circumferential surface of the support portion 10f and engaging with it through an undercut to hold the support portion 10f.

[0027] The head portion 30 is provided with an outlet 35. The contents stored in the internal space S of the head portion 30 can flow out to the outside of the head portion 30 through the outlet 35.

[0028] The head portion 30 is provided with a cylindrical mounting portion 36 that communicates with the outlet 35, and a nozzle 40 is attached to the mounting portion 36. The nozzle 40 has a discharge hole 41 that communicates with the outlet 35, and can discharge the contents supplied from the internal space S of the head portion 30 through the outlet 35 to the outside through the discharge hole 41.

[0029] In the discharge device 1 or discharge container 2 of this embodiment, the nozzle 40 is configured to allow the discharge hole 41 to be easily opened and closed by a rotational operation. Details of the above configuration of the nozzle 40 will be described later.

[0030] A first check valve 50 is positioned at the outlet 35. In this embodiment, the first check valve 50 has an annular holding portion 51 that is clamped and fixed between a valve retainer 37 attached to the mounting portion 36 and the partition wall portion of the mounting portion 36 where the outlet 35 is provided, a valve body 52 that closes the outlet 35, and multiple (3) elastically deformable legs 53 that connect the holding portion 51 and the valve body 52. ​​The first check valve 50 allows the flow of contents from the internal space S inside the head portion 30 toward the discharge hole 41, but operates to block the flow of contents from the discharge hole 41 toward the internal space S inside the head portion 30.

[0031] Furthermore, a second check valve 60 is positioned at the inlet 10d. In this embodiment, the second check valve 60 has an annular holding part 61 fitted and fixed in a recess provided in the top wall portion 10b, a valve body 62 that closes the inlet 10d, and multiple (3) elastically deformable legs 63 that connect the holding part 61 and the valve body 62. The second check valve 60 allows the flow of contents from inside the container body 3 towards the internal space S inside the head portion 30, but operates to block the flow of contents from the internal space S inside the head portion 30 towards the inside of the container body 3.

[0032] Note that the first check valve 50 and the second check valve 60 may be of other configurations as long as they operate in a manner that provides the above-described functions.

[0033] As described above, the head portion 30 is provided with an elastically deformable portion 32c that can expand and contract in the direction of the axis O. With the provision of the elastically deformable portion 32c, the top wall portion 31 of the head portion 30 functions as an operating portion. That is, from the state shown in Figure 1, as shown in Figure 2, when the top wall portion 31 is pushed downward, the elastically deformable portion 32c elastically deforms to contract in the direction along the axis O (up and down direction), thereby reducing the volume of the internal space S of the head portion 30 and pressurizing it.

[0034] When the internal space S is pressurized, the first check valve 50 opens while the second check valve 60 remains closed, and the contents stored in the internal space S are discharged from the outlet 35 through the discharge hole 41 to the outside through the nozzle 40. In this way, the head portion 30 functions as a pump by providing the elastic deformation portion 32c.

[0035] After the contents are discharged and the downward pressure on the top wall portion 31 is released, the top wall portion 31 and the elastically deformable portion 32c return to their original shape due to the elastic force of the top wall portion 31 and the elastically deformable portion 32c, as shown in Figure 3. At this time, the internal space S becomes negative pressure, so the second check valve 60 opens while the first check valve 50 remains closed, and the contents stored inside the container body 3 are filled into the internal space S through the suction tube 20 and the inlet 10d.

[0036] By repeatedly pressing down on the top wall portion 31 and releasing it, the contents can be appropriately discharged to the outside from the discharge hole 41 of the nozzle 40.

[0037] Furthermore, the elastically deformable portion 32c provided in the head portion 30 is not limited to the bellows-shaped one described above. Various configurations can be adopted as long as they are configured to elastically deform in such a way that the head portion 30 is reduced in volume when the top wall portion 31 is pushed downwards.

[0038] Next, we will describe the details of the nozzle 40.

[0039] As shown in Figures 4, 5, and 6, the nozzle 40 has a rotating body 42 and a protruding portion 43.

[0040] The rotating body 42 has a cylindrical portion 42a. As shown in Figure 6, the cylindrical portion 42a is fitted inside the mounting portion 36, and an annular projection 42b provided on the outer circumferential surface of the cylindrical portion 42a engages with an annular groove 36a provided on the inner circumferential surface of the mounting portion 36. As a result, the rotating body 42 is mounted on the head portion 30 so as to be rotatable around the pivot axis RA.

[0041] As shown in Figures 4, 5, and 6, the discharge hole 41 is provided on the nozzle body 42c, which is integrally connected to the front end (the end facing away from the outlet 35) of the cylindrical portion 42a of the rotating body 42. As shown in Figure 6, the discharge hole 41 extends from the front end to the rear end of the nozzle body 42c, and its inlet-side opening end 41a, which faces the outlet 35, is positioned eccentrically with respect to the rotation axis RA.

[0042] In this embodiment, the discharge hole 41 extends straight parallel to the pivot axis RA from the outward-facing outlet end 41b to the inlet end 41a, and is eccentrically positioned so that its entirety is shifted radially outward with respect to the pivot axis RA. Furthermore, the rear end surface of the nozzle body 42c of the rotating body 42 is provided with three recesses 42d arranged at equal intervals in the circumferential direction with respect to the inlet end 41a, centered on the pivot axis RA. That is, on the rear end surface of the nozzle body 42c of the rotating body 42, one inlet end 41a and three recesses 42d are arranged at equal intervals, shifted by 90 degrees each in the circumferential direction with respect to the pivot axis RA.

[0043] The rotating body 42 can be configured to have a knob 44 for rotational operation integrated with the nozzle body 42c.

[0044] The valve retainer 37 is positioned between the rotating body 42 and the first check valve 50. The valve retainer 37 is roughly disc-shaped, and has multiple (four) through holes 37a arranged circumferentially around the pivot axis RA to allow the contents flowing out from the outlet 35 to the discharge hole 41.

[0045] The protrusions 43 project from the outlet 35 towards the discharge hole 41 and are provided on the head portion 30 eccentrically with respect to the pivot axis RA. In this embodiment, a pair of protrusions 43 are provided on the front end surface of the valve retainer 37 facing the nozzle 40, arranged symmetrically with respect to the pivot axis RA. Each protrusion 43 is cylindrical in shape and extends parallel to the pivot axis RA, and its length in the direction along the pivot axis RA is longer than the cylindrical portion 42a. The front end portion of each protrusion 43 is also chamfered. The chamfered portion of the pair of protrusions 43 has a diameter that allows it to contact the inlet-side opening end 41a of the discharge hole 41 over its entire circumference. Furthermore, the amount of eccentricity (distance of eccentricity) of the pair of protrusions 43 with respect to the pivot axis RA is the same as the amount of eccentricity of the inlet-side opening end 41a and the recessed portion 42d with respect to the pivot axis RA.

[0046] The pair of protrusions 43 are positioned at a 90-degree circumferential angle to the inlet-side opening end 41a of the discharge hole 41 when the rotating body 42 is in the open position shown in Figures 4, 5, and 6, and are engaged with or positioned in the corresponding recessed portion 42d. Therefore, when the rotating body 42 is in the open position, the discharge hole 41 is open without being blocked by the protrusions 43 and is in communication with the outlet 35. Thus, by pushing the top wall portion 31 downwards, the contents stored in the internal space S can be discharged to the outside through the discharge hole 41 from the outlet 35. Furthermore, since the tips of the pair of protrusions 43 are engaged with or positioned in the corresponding recessed portion 42d, the rotating body 42 is held in the open position without unexpectedly rotating.

[0047] On the other hand, as shown in Figures 7, 8, 9, and 10, when the knob 44 is operated to rotate the rotating body 42 90 degrees to one side in the circumferential direction around the rotation axis RA, the rotating body 42 is placed in the closed position. When the rotating body 42 is in the closed position, one protrusion 43 faces the inlet-side opening end 41a of the discharge hole 41, and its tip abuts against the inlet-side opening end 41a around its entire circumference, closing the discharge hole 41. The other protrusion 43 engages with or is positioned in relation to the corresponding recess 42d. Furthermore, since the tips of the pair of protrusions 43 are engaged with or positioned in relation to the inlet-side opening end 41a or the corresponding recess 42d, the rotating body 42 is held in the closed position without unexpectedly rotating.

[0048] In this embodiment, since a pair of protrusions 43 are provided symmetrically on either side of the pivot axis RA, when the gripping portion 44 is operated to rotate the rotating body 42 90 degrees from the open position to the other side in the circumferential direction around the pivot axis RA, the rotating body 42 returns to the closed position, one protrusion 43 engages with or is positioned in the recess 42d, and the other protrusion 43 faces the inlet-side opening end 41a of the discharge hole 41 and contacts the inlet-side opening end 41a over its entire circumference, thereby closing the discharge hole 41.

[0049] Furthermore, by operating the knob 44 to rotate the rotating body 42, which is in the closed position, by 90 degrees in the circumferential direction around the rotation axis RA, the rotating body 42 can be returned to the open position, and the dispensing device 1 or dispensing container 2 can be made ready to dispense its contents.

[0050] Thus, with the discharge device 1 or discharge container 2 of this embodiment, the discharge hole 41 can be opened and closed with a simple operation of just rotating the rotating body 42 of the nozzle 40.

[0051] Furthermore, when the rotating body 42 is in the closed position and the discharge hole 41 is blocked by the protrusion 43, communication between the discharge hole 41 and the outlet 35 is blocked. Therefore, even if the first check valve 50 unexpectedly opens due to vibration, shock, etc., during periods of non-use such as during distribution, it is possible to prevent the contents stored in the internal space S of the head portion 30 from leaking out through the discharge hole 41.

[0052] Furthermore, in the discharge device 1 or discharge container 2 of this embodiment, a protrusion 43 is provided on the valve retainer 37 positioned between the rotating body 42 and the first check valve 50. This simplifies the configuration for providing the protrusion 43, thereby reducing the cost of the discharge device 1 or discharge container 2.

[0053] Furthermore, in the discharge device 1 or discharge container 2 of this embodiment, the valve retainer 37 is provided with a pair of protrusions 43 arranged symmetrically on either side of the pivot axis RA, and the rotating body 42 is provided with three recesses 42d arranged at equal intervals in the circumferential direction with respect to the inlet-side opening end 41a, with respect to the pivot axis RA. As a result, the discharge hole 41 can be opened and closed regardless of whether the rotating body 42 is rotated from the open position in one or the other direction in the circumferential direction with respect to the pivot axis RA. This makes it easier to open and close the discharge hole 41.

[0054] Furthermore, in the discharge device 1 to discharge container 2 according to this embodiment, the contents can be discharged by pressing down on the top wall portion 31 to elastically deform the elastic deformation portion 32c. Therefore, the contents can be discharged by making the head portion 30 function as a pump without using a pump with a cylinder and piston or a metal spring. Accordingly, the discharge device 1 to discharge container 2 according to this embodiment can be made more recyclable and can also be used for applications that discharge contents containing solid materials such as abrasives.

[0055] Figure 11 is a front view of the modified nozzle in the open position, and Figure 12 is an enlarged cross-sectional view of the nozzle portion of a discharge container equipped with the modified nozzle shown in Figure 11, in the open position. Furthermore, Figure 13 is a front view of the modified nozzle shown in Figure 11 in the closed position, and Figure 14 is an enlarged cross-sectional view of the nozzle portion of a discharge container equipped with the modified nozzle shown in Figure 11, in the closed position. Note that the same reference numerals are used for the components corresponding to the components described above in Figures 11 to 14.

[0056] As shown in Figures 11 to 14, the nozzle 40 can be configured such that the convex portion 43 is formed in a flexible columnar shape, and the rotating body 42 has an inclined wall 42e between the inlet-side opening end 41a of the discharge hole 41 and the valve retainer 37. In this case, the valve retainer 37 is provided with only one convex portion 43 that is eccentric with respect to the rotation axis RA, and a part of the nozzle body 42c is composed of the inclined wall 42e. The inclined wall 42e extends inclined with respect to the rotation axis RA from the inlet-side opening end 41a beyond the rotation axis RA to the cylindrical portion 42a on the opposite side of the inlet-side opening end 41a, straddling the rotation axis RA. The inclined wall 42e has a substantially constant thickness, and the inner surface 42f of the inclined wall 42e is an inclined surface similar to the inclined wall 42e. The discharge hole 41 is eccentric such that the inlet-side opening end 41a is offset as a whole with respect to the rotation axis RA, and extends diagonally from the inlet-side opening end 41a towards the outlet-side opening end 41b.

[0057] As shown in Figure 12, when the rotating body 42 is in the open position, the protrusion 43 contacts the inner surface 42f of the inclined wall 42e, bending along the inclined wall 42e toward the pivot axis RA and moving away from the inlet-side opening end 41a. Therefore, when the rotating body 42 is in the open position, the discharge hole 41 is open without being blocked by the protrusion 43 and is in communication with the outlet 35. Thus, by pushing the top wall portion 31 downwards, the contents stored in the internal space S can be discharged to the outside through the discharge hole 41 from the outlet 35.

[0058] On the other hand, as shown in Figure 14, when the knob 44 is operated to rotate the rotating body 42 180 degrees in the circumferential direction around the rotation axis RA, the rotating body 42 is placed in the closed position. When the rotating body 42 is in the closed position, the protrusion 43 detaches from the inclined wall 42e and extends straight without contacting the inner surface 42f of the inclined wall 42e, contacting the inlet-side opening end 41a around its entire circumference and closing the discharge hole 41.

[0059] Thus, in the modified dispensing device 1 or dispensing container 2, the dispensing hole 41 can be opened and closed with a simple operation of just rotating the rotating body 42 of the nozzle 40.

[0060] Figure 15 is a cross-sectional side view of a discharge container equipped with a discharge device according to another embodiment, and Figure 16 is a cross-sectional side view of the discharge container shown in Figure 15 according to another embodiment, in a state where the top wall is pressed down to discharge the contents. In Figures 15 and 16, the same reference numerals are used for members corresponding to the members described above.

[0061] In the discharge device 1 to discharge container 2 according to the embodiment shown in Figure 1, the elastically deformable portion 32c provided on the head portion 30 is bellows-shaped. In contrast, as shown in Figures 15 and 16, in the discharge device 1 to discharge container 2 according to other embodiments, the nozzle 40 configuration is the same as that of the embodiment shown in Figure 1, but the elastically deformable portion 32c provided on the peripheral wall 32 of the head portion 30 is configured such that the region extending from the back side facing the nozzle 40 across the axis O of the head portion 30 toward both sides is thinner than other regions of the peripheral wall 32, so that it deforms more easily than other regions of the peripheral wall 32. More specifically, the portion of the elastically deformable portion 32c extending from the back side region of the peripheral wall 32 toward both sides of the peripheral wall 32 has a shape that extends diagonally upward toward the nozzle 40 in the regions toward both sides.

[0062] In the discharge device 1 or discharge container 2 according to other embodiments, the head portion 30 is provided with the elastic deformation portion 32c as described above, so that the top wall portion 31 functions as an operating portion. That is, when the top wall portion 31 is pushed downward from the state shown in Figure 15, the elastic deformation portion 32c elastically deforms inward of the peripheral wall 32, as shown in Figure 16, thereby reducing the volume of the internal space S of the head portion 30 and pressurizing it. At this time, the upper part of the top wall portion 31 is pushed downward by the elastic deformation of the elastic deformation portion 32c, and is bent relative to the portion where the elastic deformation portion 32c is not provided.

[0063] When the internal space S is pressurized, the first check valve 50 opens while the second check valve 60 remains closed, and the contents stored in the internal space S are discharged from the outlet 35 through the discharge hole 41 to the outside through the nozzle 40. In this way, in the discharge device 1 to discharge container 2 according to other embodiments, the elastic deformation portion 32c of the above shape is provided so that the head portion 30 can function as a pump to discharge the contents.

[0064] After the contents are discharged, when the downward pressure on the top wall portion 31 is released, the top wall portion 31 and the elastically deformable portion 32c return to their original shape due to the elastic force of the top wall portion 31 and the elastically deformable portion 32c. At this time, the internal space S becomes negative pressure, so the second check valve 60 opens while the first check valve 50 remains closed, and the contents stored inside the container body 3 are filled into the internal space S through the suction tube 20 and the inlet 10d.

[0065] By repeatedly pressing down on the top wall portion 31 and releasing it, the contents can be appropriately discharged to the outside from the discharge hole 41 of the nozzle 40.

[0066] Thus, in the other embodiments of the dispensing device 1 to dispensing container 2, the contents can be discharged by pressing down on the top wall portion 31 to elastically deform the elastic deformation portion 32c. Therefore, the contents can be discharged by making the head portion 30 function as a pump without using a pump with a cylinder and piston or a metal spring. Accordingly, the other embodiments of the dispensing device 1 to dispensing container 2 can improve the recyclability of the dispensing device 1 to dispensing container 2 and can also be used for applications that discharge contents containing solid materials such as abrasives.

[0067] Furthermore, in the other embodiments of the dispensing device 1 or dispensing container 2, the nozzle 40 does not move up or down when the top wall portion 31 is pressed down, making it easier to dispense the contents from the nozzle 40 to a desired position.

[0068] In the other embodiments of the dispensing device 1 or dispensing container 2, as shown in Figure 15, a dish-shaped portion 70 is integrally attached to the top wall portion 10b of the mounting cap 10. The dish-shaped portion 70 is formed in the shape of a dish with a circular opening in the center, and its inner periphery is integrally attached to the upper surface of the top wall portion 10b. Furthermore, the outer periphery of the dish-shaped portion 70 is inclined so that it is positioned above its inner periphery, and from this inclined position, the outer periphery can be elastically deformed vertically so that it approaches or moves away from the top wall portion 10b, starting from the inner periphery. The outer periphery of the dish-shaped portion 70 is integrally attached to the lower end of the support portion 10f. As a result, the support portion 10f can move downward from its natural position shown in Figure 15 due to the elastic deformation of the dish-shaped portion 70.

[0069] Between the top wall portion 10b and the dish-shaped portion 70, an annular ventilation space 71 is formed, with its outer circumference covered by the cylindrical portion 33. The top wall portion 10b is also provided with ventilation holes 72 that penetrate vertically through the top wall portion 10b, connecting the ventilation space 71 to the inside of the container body 3. Furthermore, a communication groove 73 is provided on the inner circumferential surface of the cylindrical portion 33. The communication groove 73 is a groove that extends vertically and is long enough to straddle the annular outer projection 74 that extends around the entire circumference of the outer edge of the top wall portion 10b. In the natural state shown in Figure 15, the communication groove 73 is located above the outer projection 74. On the other hand, when the dish-shaped portion 70 elastically deforms and the support portion 10f moves from the position shown in Figure 15 toward the mounting cap 10, the communication groove 73 straddles the outer peripheral projection 74 and faces the outer peripheral projection 74, connecting the ventilation space 71 to the outside of the cylindrical portion 33. At least one communication groove 73 is sufficient, but multiple grooves may be provided spaced apart in the circumferential direction.

[0070] The lower end surface of the cylindrical portion 33 faces the upper end surface of the peripheral wall portion 10a, and the upper end surface of the peripheral wall portion 10a is provided with a plurality of protrusions 75 that come into contact with the lower end surface of the cylindrical portion 33 when the dish-shaped portion 70 elastically deforms and the support portion 10f moves in a direction approaching the mounting cap 10, thereby securing a communication groove 73 and a passage to the outside between the cylindrical portion 33 and the mounting cap 10.

[0071] As shown in Figure 16, when the top wall portion 31 is pushed downward, the dish-shaped portion 70 elastically deforms due to the downward force, and the cylindrical portion 33 moves downward and comes into contact with the projection 75. As a result, the ventilation space 71, in which the communication groove 73 is opposite the outer peripheral projection 74 and communicates with the ventilation hole 72, is connected to the outside through the gap between the communication groove 73 and the adjacent projection 75. Therefore, after the contents are discharged, when the downward pressure on the top wall portion 31 is released and the contents stored inside the container body 3 are filled into the internal space S through the suction tube 20 and the inlet 10d, outside air can be introduced into the container body 3 through the ventilation hole 72, thereby suppressing the generation of negative pressure inside the container body 3.

[0072] In this embodiment, as shown in Figure 1, it is preferable that the top wall portion 31 has a curved shape that is convex upward in a cross section perpendicular to the radial direction from the nozzle 40 toward the back of the head portion 30. In this embodiment, the top wall portion 31 has an arc shape in this cross section. With this configuration, when the top wall portion 31 is pushed downward and the elastic deformation portion 32c is elastically deformed and bent, a large elastic restoring force is generated in the top wall portion 31, so that when the downward pressure on the top wall portion 31 is released, the top wall portion 31 and the elastic deformation portion 32c can be restored to their original shape more quickly and reliably.

[0073] Furthermore, the shape of the upwardly extending tip portions on both sides of the elastic deformation portion 32c is preferably a semicircular shape with a radius of 1.5 mm or more, and more preferably a semicircular shape with a radius of 2.0 mm or more. With this configuration, when the top wall portion 31 is pushed downward and the elastic deformation portion 32c is elastically deformed, a greater elastic restoring force is generated in the elastic deformation portion 32c, so that when the downward pressure on the top wall portion 31 is released, the top wall portion 31 and the elastic deformation portion 32c can be restored to their original shape more quickly and reliably.

[0074] In addition, in the dispensing device 1 to dispensing container 2 according to other embodiments, the elastically deformable portion 32c can be formed from a softer material than the material forming the other areas of the peripheral wall 32, and integrated with the peripheral wall 32 by insert molding such as two-color molding or secondary molding, thereby being formed softer than the other areas of the peripheral wall 32 and being able to elastically deform more easily than the other areas of the peripheral wall 32.

[0075] The present invention is not limited to the embodiments described above, and it goes without saying that various modifications are possible without departing from the spirit of the invention.

[0076] For example, in the above embodiment, the peripheral wall 32 of the head portion 30 is cylindrical, but it is not limited to this and may be elliptical or rectangular.

[0077] Furthermore, although the elastically deformable portion 32c was made bellows-shaped in the above embodiment, its shape and configuration can be changed in various ways as long as the top wall portion 31 can be elastically deformed when pressed down, allowing the head portion 30 to function as a pump.

[0078] Furthermore, although the head portion 30 is provided with a pair of protrusions 43, it is sufficient to provide at least one protrusion 43.

[0079] Furthermore, the protrusion 43 is not limited to the valve retainer 37, but may also be provided on other parts such as the head portion 30 or other members attached to the head portion 30. [Explanation of Symbols]

[0080] 1 Dispenser 2 Discharge container 3. Container body 3a Mouth 3b Torso 3c male screw 10. Mounting cap 10a Peripheral wall part 10b Ceiling wall part 10c female thread 10d inlet 10e Tube Holder 10f Support part 20 Suction tube 30 Head section 31 Top wall 32 Peripheral wall 32a Upper part 32b lower part 32c Elastic deformation part 33 Cylindrical part 34 Flange-shaped portion 35 Outlet 36 Mounting part 36a Annular groove 37 Valve retainer 37a Through hole 40 nozzles 41 Discharge hole 41a Inflow side opening end 41b Outlet side opening end 42 rotating body 42a Cylindrical portion 42b Annular projection 42c Nozzle Body 42d Recessed area 42e sloped wall 42f interior 43 Convex part 44. Pinching part 50 First check valve 51 Holding part 52 Valve body 53 Legs 60. Second check valve 61 Holding part 62 valve body 63 Legs 70 Dish-shaped part 71 Ventilated space 72 ventilation holes 73 Communication groove 74 Peripheral protrusion 75 Protrusion O axis S interior space RA Rotary Axis

Claims

1. A mounting cap that is attached to the mouth of the container body, A head portion comprising a top wall and a cylindrical peripheral wall, supported by the mounting cap, A nozzle having a discharge hole that communicates with the outlet provided in the head portion, A first check valve is positioned at the outlet and prevents the flow of contents from the discharge hole toward the interior of the head portion, while allowing the flow of contents from the interior of the head portion toward the discharge hole. A second check valve is provided in the inlet of the mounting cap, which prevents the flow of contents from the inside of the head portion to the inside of the container body and allows the flow of contents from the inside of the container body to the inside of the head portion. The head portion is provided with an elastic deformation portion which, when the top wall portion is pressed down, elastically deforms to reduce the volume of the head portion, thereby allowing the head portion to function as a pump. The nozzle mentioned above A rotating body is mounted on the head portion so as to be rotatable about a pivot axis, and is provided with the discharge hole, with the inlet-side opening end of the discharge hole facing the outlet side being eccentrically positioned with respect to the pivot axis, A discharge device characterized by having a protrusion that protrudes from the outlet side toward the discharge hole side and is provided on the head portion eccentrically with respect to the pivot axis, which is positioned circumferentially offset from the inlet side opening end when the rotating body is in the open position, and which abuts the inlet side opening end over its entire circumference and closes the discharge hole when the rotating body is in the closed position, having rotated by a predetermined angle from the open position around the pivot axis.

2. A mounting cap that is attached to the mouth of the container body, A head portion comprising a top wall and a cylindrical peripheral wall, supported by the mounting cap, A nozzle having a discharge hole that communicates with the outlet provided in the head portion, A first check valve is positioned at the outlet and prevents the flow of contents from the discharge hole toward the interior of the head portion, while allowing the flow of contents from the interior of the head portion toward the discharge hole. A second check valve is provided in the inlet of the mounting cap, which prevents the flow of contents from the inside of the head portion to the inside of the container body and allows the flow of contents from the inside of the container body to the inside of the head portion. The head portion is provided with an elastic deformation portion which, when the top wall portion is pressed down, elastically deforms to reduce the volume of the head portion, thereby allowing the head portion to function as a pump. The nozzle mentioned above A rotating body is mounted on the head portion so as to be rotatable about a pivot axis, and is provided with the discharge hole, with the inlet-side opening end of the discharge hole facing the outlet side being eccentrically positioned with respect to the pivot axis, A valve retainer is positioned between the rotating body and the first check valve and holds the first check valve, A discharge device characterized by having a convex portion that protrudes from the outlet side toward the discharge hole side and is provided on the valve retainer eccentrically with respect to the pivot axis, which is positioned circumferentially offset from the inlet side opening end when the pivot body is in the open position, and which abuts the inlet side opening end over its entire circumference and closes the discharge hole when the pivot body is in the closed position, which is rotated by a predetermined angle from the open position around the pivot axis.

3. The valve retainer is provided with a pair of protrusions arranged symmetrically on either side of the pivot shaft, The rotating body is provided with three recesses arranged at equal intervals in the circumferential direction with respect to the inlet-side opening end, with respect to the pivot axis. When the rotating body is in the open position, the tips of the pair of protrusions are positioned in the recessed portion. The discharge device according to claim 2, wherein when the rotating body is in the closed position, one of the protrusions abuts against the inlet-side opening end over its entire circumference, and the other protrusion is positioned in the recess.

4. The aforementioned protrusion is formed in a flexible columnar shape, The rotating body has an inclined wall between the inlet-side opening end and the valve retainer, When the rotating body is in the open position, the protrusion bends along the inclined wall and moves away from the inlet-side opening end. The discharge device according to claim 2, wherein when the rotating body is in the closed position, the protrusion extends straight without contacting the inclined wall and contacts the inlet side opening end over its entire circumference.

5. A discharge container comprising the container body and the discharge device described in any one of claims 1 to 4.

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