Liquid dispensing container

Abstract

To provide a liquid discharge container which can prevent a liquid from being sagged even if a container body is tilted.SOLUTION: The liquid discharge container includes: a container body 2 in which a mouth-to-neck part 6 erects from a compressible body part 4; and a cap-shaped obturator 10 that is attached to the mouth-to-neck part 6 and has a closing wall part 20 that closes an opening surface 9 of the mouth-to-neck part 6. At least a part of the closing wall part 20 is formed on an easily deformable wall part 28 that can bulge upward by compressing the body part 4, and a single or a plurality of discharge holes 34 are opened on the easily deformable wall part 28. An inner plug 50 is provided below the closing wall part 20. The inner plug 50 has a plug plate 58 that contacts a lower surface of the easily deformable wall part 28 in a state where the easily deformable wall part 28 is not deformed, a communicating hole 60 sealed by the easily deformable wall part 28 is formed on the plug plate 58, and the easily deformable wall part 28 is provided such that it is displaced from a first position when not deformed to a second position when bulged upward when the body part 4 is compressed.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a liquid discharging container. [Background technology]

[0002] A known liquid dispensing container of this type has a roughly cylindrical lid attached to the mouth and neck of the container body, with the outer periphery of a thin plate with multiple nozzles attached to the upper end of the mouth of the lid, and a cap fitted onto the outer surface of the mouth of the lid; when the container body is turned upside down and squeezed, liquid is sprayed in a shower-like manner from the nozzles (Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2002-59957 Summary of the Invention [Problem to be solved by the invention]

[0004] With the container of Patent Document 1, if the container is turned upside down or tilted with the cap removed, there is a risk of liquid dripping from the nozzle.

[0005] A first object of the present invention is to provide a liquid dispensing container that is less susceptible to spilling and dripping of the liquid contained therein even when the container body is tilted. A second object of the present invention is to provide a liquid discharging container that is easy to use. [Means for solving the problem]

[0006] The first means includes a container body 2 having a mouth and neck part 6 standing from a squeezable body part 4, a cap-shaped obturator 10 having an obturation wall 20 that is attached to the mouth and neck portion 6 and obturates the opening surface 9 of the mouth and neck portion 6; Equipped with At least a part of the closing wall portion 20 is formed into an easily deformable wall portion 28 which can expand upward by squeezing the body portion 4, and one or more discharge holes 34 are opened in the easily deformable wall portion 28. The housing further includes an inner plug 50 disposed below the blocking wall portion 20, the inner plug 50 having a plug plate 58 that contacts the lower surface of the easily deformable wall portion 28 when the easily deformable wall portion 28 is not deformed, and a communication hole 60 that is sealed by the easily deformable wall portion 28 is formed in the plug plate 58; When the body portion 4 is squeezed, the easily deformable wall portion 28 is displaced from a first position when not deformed to a second position when bulging upward, thereby forming a discharge hole 34 and The above The inside of the container body 2 is communicated with through the communication hole 60. hair, The blocking wall portion 20 has a raised portion A that is raised in a cylindrical shape with a top inside the mouth and neck portion 6 when viewed from above, and the top of this raised portion A is the easily deformable wall portion 28, and the inside plug 50 is inserted into the raised portion A, An outside air introduction passage P is formed between the inner surface of the raised portion A and the inner plug 50 for introducing outside air from the discharge hole 34 into the inside of the container body 2 while the easily deformable wall portion 28 is sealing the communication hole 60, and a check valve V is provided in part of this outside air introduction passage P which opens when negative pressure is created inside the container body 2 and closes when the negative pressure is released.

[0007] In this means, as shown in FIG. 1, at least a part of the closing wall portion 20 that closes the opening surface 9 of the mouth / neck portion 6 of the container body 2 is formed into an easily deformable wall portion . The easily deformable wall portion 28 can bulge upward by squeezing the body portion 4. An inner plug 50 is disposed below the blocking wall portion 20, and a plug plate 58 of the inner plug 50 is brought into contact with the easily deformable wall portion 28. The stopper plate 58 has a communication hole 60 that is sealed by the easily deformable wall portion 28, and one or more discharge holes 34 are opened in the easily deformable wall portion 28. The discharge hole 34 and the inside of the container body 2 are provided to communicate with each other via the communication hole 60 by displacing the easily deformable wall portion 28 from a first position when it is not deformed to a second position when it bulges upward. According to this structure, the liquid will not be discharged unless the body 4 is squeezed, so that even if the container body 2 is tilted, the liquid will not splash out and is less likely to drip. In this means, as shown in FIG. 1, the closure wall portion 20 has a raised portion A which rises into a cylindrical shape with a top inside the mouth and neck portion 6 when viewed from above, and the top of this raised portion A is made into the easily deformable wall portion 28. The inside plug 50 is inserted into the raised portion A. An outside air introduction path P is formed between the inner surface of the raised portion A and the inside plug 50. This outside air introduction path P is provided so as to introduce outside air into the inside of the container body 2 from the discharge hole 34 in a state in which the easily deformable wall portion 28 seals the communication hole 60, as shown in FIG. 3(B). A check valve V is provided in a portion of this outside air introduction passage P. According to this structure, the negative internal pressure state after squeezing the body 4 can be quickly eliminated, and continuous discharge operations can be efficiently performed, making it easy to use.

[0008] The second means has the first means, and the upper surface of the stopper plate 58 is formed into a concave curved surface 59 that is concave downward, The easily deformable wall portion 28 is shaped into a downward convex shape that conforms to the concave curved surface 59, and is formed so that when the body portion 4 is compressed, it inverts from a downward convex shape to an upward convex shape, and when the body portion 4 is released from compression, it elastically restores to its downward convex shape.

[0009] In this means, as shown in FIG. 1, the upper surface of the stopper plate 58 is formed into a concave curved surface 59 that is recessed downward, and the easily deformable wall portion 28 is shaped into a downward convex shape that conforms to the concave curved surface 59. The body 4 is formed so that it is inverted from a downward convex shape to an upward convex shape when compressed, and is elastically restored to its downward convex shape when the compression of the body 4 is released. With this structure, the liquid content can be discharged smoothly and efficiently through the gap S between the easily deformable wall portion 28 that is inverted into an upward convex shape by squeezing the body portion and the concave curved surface 59 that is concave downward. In addition, after the compression of the body 4 is released, the easily deformable wall portion 28 quickly reverses into a downward convex shape to seal the communication hole 60 and prevent dripping, making it easy to use.

[0012] No. 3 The first method is or Second Measure of The cap-shaped obturator 10 has an auxiliary lid 40 attached to the cap-shaped obturator 10 so as to be capable of opening and closing the upper surface of the cap-shaped obturator 10, The easily deformable wall portion 28 is formed so as to be sandwiched between the auxiliary lid 40 and the stopper plate 58 in the closed state.

[0013] As shown in FIG. 1, this means includes an auxiliary lid 40 attached to the cap-shaped obturator 10 so as to be capable of opening and closing the upper surface of the cap-shaped obturator 10. The easily deformable wall portion 28 is formed so as to be sandwiched between the auxiliary lid 40 and the stopper plate 58 in the closed lid state. According to this structure, the communication hole 60 can be more reliably sealed, thereby preventing dripping. Effect of the Invention

[0014] According to the present invention, even if the container body 2 is tilted, the liquid content does not spill out and is less likely to drip. Furthermore, according to the present invention, the dispensing operation can be carried out efficiently, and the device is easy to use. [Brief description of the drawings]

[0015] [Figure 1] 2 is a cross-sectional view of a main part of a liquid discharge container according to the embodiment of the present invention. [Diagram 2] 2 is a plan view of the container shown in FIG. 1 in a deployed state of a cap-shaped closure portion and an auxiliary lid. [Diagram 3] 2A and 2B are diagrams for explaining the function of the outside air introduction passage of the container shown in FIG. 1, in which FIG. 2A shows the function of the easily deformable wall portion, and FIG. 2B shows the function of the outside air introduction passage. [Figure 4] 2 is an explanatory view showing a discharging operation of the container shown in FIG. 1. BEST MODE FOR CARRYING OUT THEINVENTION

[0016] 1 to 4 show a liquid discharge container according to an embodiment of the present invention. This container is formed of a container body 2, a cap-shaped closure 10, an auxiliary lid 40, and an inner plug 50. However, the auxiliary lid 40 may be omitted. Each of these members can be made of, for example, a synthetic resin material.

[0017] The container body 2 has a mouth / neck portion 6 standing from an elastically compressible body portion 4, and has an opening surface 9 on the inside of an upper end 7 of the mouth / neck portion 6. The neck portion 6 in the illustrated example has a large diameter portion 6a on the lower side, a small diameter portion 6c on the upper side rising through a reduced diameter portion 6b, and a male thread portion 8 is formed on the outer surface of the large diameter portion 6a.

[0018] The cap-shaped obturator 10 serves to obturate the opening 9 of the mouth / neck portion 6 . In this embodiment, the cap-shaped obturator 10 is formed as a cap body that covers the periphery of the mouth / neck portion 6 . The cap body in the illustrated example is substantially cylindrical with a top, and is provided with a closing wall 20 as a top wall at the upper end of the mounting tube 12 that fits onto the outer surface of the mouth and neck portion 6. This closing wall 20 is provided so as to close the opening surface 9. However, this structure can be modified as appropriate. An internal thread 14 that meshes with the external thread 8 is formed on the inner surface of the mounting tube 12 , and the auxiliary lid 40 is connected to the upper end of the mounting tube 12 via a hinge 16 . However, the cap-shaped obturator 10 and the auxiliary lid 40 may be formed separately. Further, an annular step e is formed on the upper part of the outer surface of the mounting tube portion 12.

[0019] In this embodiment, as shown in FIG. 1, the closure wall portion 20 has a raised portion A formed by raising the upper portion of the mouth / neck portion 6, and a storage recess R for storing the inside plug 50 is formed on the inside of this raised portion A. The specific structure of the raised portion A will be described later. In the illustrated example, the blocking wall portion 20 has an inward flange 22 attached to the upper end portion of the mounting tube portion 12 . A tapered wall portion 26 having a small diameter at its upper end stands up from the inner end of this inward flange 22 via a short, cylindrical vertical section 24, and a deformable wall portion 28 is connected to the upper end of this tapered wall portion 26 to close the upper end opening of the tapered wall portion 26. In this specification, the term "easily deformable wall portion" means a wall portion that can be easily deformed to such an extent that a required action (expansion of the easily deformable wall portion 28) can be obtained by a certain operation (squeezing the body portion 4). This point will be described later. Moreover, the inward flange 22 is formed in the thick portion. In this example, the raised portion A is composed of the vertical cylinder portion 24, the tapered wall portion 26, and the easily deformable wall portion 28, as shown in FIG. 3(B). As shown in FIG. 3(A), the storage recess R is defined by an inner peripheral surface 25 of the vertical cylindrical portion 24, an inner surface 27 of the tapered wall portion 26, and a lower surface 29 of the easily deformable wall portion 28. Further, within the storage recess R, a locking projection b is provided which locks onto the underside of a flange portion 54 which will be described later. However, these structures can be modified as appropriate. 1, the vertical cylinder portion 24 is extended upward to form a connecting cylinder portion 30 for connecting the vertical cylinder portion 24 to the auxiliary cover 40. A pressure-contact rib 31 is provided around the outer surface of the connecting cylinder portion 30 at the upper end. In the illustrated example, a cylindrical seal portion 32 is provided vertically from the inner end of the inward flange 22. The cylindrical seal portion 32 is tightly fitted into the small diameter portion 6c of the mouth / neck portion 6. Furthermore, in the illustrated example, a locking protrusion f is provided around the outer periphery of the upper surface of the inward flange 22 for locking to a lid peripheral wall 42 described below.

[0020] 1, the tapered wall portion 26 protrudes upward and inward from the vertical cylinder portion 24 at an angle closer to vertical than horizontal. The tapered wall portion 26 is thinner than the vertical cylinder portion 24 and the connecting cylinder portion 30, but a thick stiffening rib i is provided around the upper end of the tapered wall portion 26. However, these structures can be modified as appropriate.

[0021] The easily deformable wall portion 28 is formed so as to bulge upward when pressure is increased inside the container body 2 due to squeezing of the body portion 4, and to be able to elastically restore to its original shape when the compression is released. In this embodiment, the easily deformable wall portion 28 is shaped into a downward convex shape (a shallow bowl shape in the illustrated example), and is formed so that it can bulge from that shape to an upward convex shape when pressure is increased inside the container body 2. The wall thickness or material of the easily deformable wall portion 28 is appropriately designed so as to enable the easily deformable wall portion 28 to bulge upward. In the illustrated example, the easily deformable wall portion 28 is formed thinner than the tapered wall portion 26, thereby ensuring the easy deformation. The easily deformable wall portion 28 has one or more (four in the illustrated example) discharge holes 34 opened therein. As shown in Fig. 2, these discharge holes 34 are arranged so as not to overlap with a communication hole 60 described below from above. In the illustrated example, the four discharge holes 34 are equiangularly arranged so as to surround a communication hole 60 arranged at the center of a plug plate 58 described below (which coincides with the center of the easily deformable wall portion 28). It is sufficient that the discharge holes 34 are formed radially outward of the communication hole 60. The size of the discharge hole 34 is preferably set to a size that allows the contents to be sprayed in a shower-like manner.

[0022] As shown in FIG. 1, the auxiliary lid 40 has a top plate 44 connected to the upper end of a lid peripheral wall 42. The lid peripheral wall 42 is connected to the mounting tube portion 12 via the hinge 16. A finger hook portion 43 is attached to the lower end portion of the outer surface of the lid peripheral wall 42, located on the opposite side of the hinge 16. The locking protrusion f is locked to the lower end of the inner surface of the lid peripheral wall 42 . A hanging tube portion 46 that fits liquid-tightly onto the outer surface of the connecting tube portion 30 is provided downwardly from the underside of the top plate 44 . Further, on the inside of the hanging tube portion 46, an abutment protrusion 48 is formed for abutting against the upper surface of the easily deformable wall portion 28. The lower surface of this abutment protrusion 48 is formed into a curved surface that is convex downward along the upper surface of the easily deformable wall portion 28. The contact protrusion 48 in the illustrated example is formed by depressing a part of the top plate 44 (the center part in the illustrated example) downward into a cylindrical shape with a bottom (a shallow dish shape in the illustrated example).

[0023] The inner plug 50 has a role of regulating the discharge of liquid from the discharge hole 34, and is inserted into the storage recess R and supported by the locking projection b. The inner plug 50 has a topped cylindrical shape as a whole, and in this embodiment, is formed by a plug cylinder 52, a plug plate 58, and a valve body portion 56, as shown in FIG. 3(A). In this embodiment, the plug cylinder 52 is formed in a tapered shape with a smaller diameter at the upper end along the inner surface 27 of the tapered wall portion 26 . An annular flange 54 projects outward from the lower end of the cylindrical wall of the plug cylinder 52 . This flange portion 54 is fitted into the storage recess R, and the underside of the flange portion 54 is engaged with the locking protrusion b, so that the inside plug 50 is supported within the storage recess R. The plug plate 58 is connected to the upper end of the plug cylinder 52 as the top plate of the inner plug 50. The upper surface of the plug plate 58 is formed into a downwardly recessed concave surface 59. This concave surface 59 and the lower surface of the easily deformable wall portion 28 when in a downwardly convex shape are formed to match each other. In the illustrated example, the entire stopper plate 58 is a downwardly convex curved plate, but the shape of the lower surface of the stopper plate 58 can be changed as appropriate. The plug cylinder 52 and the plug plate 58 are thick-walled portions having rigidity, and have a strength sufficient to sandwich the easily deformable wall portion 28 between the plug plate 58 and the abutment projection 48 in the state shown in FIG.

[0024] A communication hole 60 is opened in the center of the stopper plate 58. This communication hole 60 is provided so as to be sealed by the underside 29 of the easily deformable wall portion 28 when the easily deformable wall portion 28 is in a first position (position shown by a solid line in FIG. 3(A)) when the easily deformable wall portion 28 is not deformed, and is opened when the easily deformable wall portion 28 is displaced to a second position (position shown by an imaginary line in FIG. 3(A)) in which the easily deformable wall portion 28 bulges upward.

[0025] Between the inside plug 50 and the inner surface of the storage recess R, an outside air introduction path P for introducing outside air into the container body 2 from the discharge hole 34 is formed. As shown in FIG. 3(A), the outside air introduction path P includes a first flow path p1 formed above the inside plug 50 and a second flow path p2 formed on the lateral side of the inside plug 50. The illustrated first flow passage p1 is formed by drilling a groove in the upper surface of the stopper plate 58, the groove extending radially outward from the lower side of the discharge hole . The second flow path p2 shown in the figure is formed by drilling a notch n vertically through the outer surface of the flange portion 54, and by forming a communicating gap between the plug tube 52 and the tapered wall portion 26, which communicates with the first flow path p1 and the notch n. In the preferred illustrated example, at least a pair of outside air introduction passages P are formed on opposite sides in the cylindrical diameter direction of the inside plug 50. However, this structure can be modified as appropriate.

[0026] The valve body 56 protrudes downward and outward from the lower end surface of the plug cylinder 52 . The valve body 56 is in contact with the inner surface of the cylindrical seal portion 32 below the inner plug 50 . The valve body portion 56 and the inner surface of the cylindrical seal portion 32 form a check valve V. This check valve V is formed so as to open when the inside of the container body 2 is subjected to a negative pressure and to close when the negative pressure is removed. The valve body 56 in the illustrated example is formed as a skirt-shaped valve (umbrella valve) with a large diameter at the lower end, but the shape thereof can be modified as appropriate. In the illustrated example, the check valve V is disposed downstream of the outside air introduction path P (on the side of the container body 2), but the position thereof can be changed as appropriate.

[0027] In the above configuration, when performing the discharge operation, the auxiliary lid 40 is opened from the state shown in FIG. 1, and the container body 2 is tilted as shown in FIG. 4 to squeeze the body 4, whereby the inside of the container body 2 is pressurized. This causes the easily deformable wall portion 28 to bulge outward (in the direction away from the stopper plate 58). Therefore, the communication hole 60 is opened, and a gap S is formed between the easily deformable wall portion 28 and the stopper plate 58. Therefore, the pressurized liquid in the container body 2 passes through the communication hole 60 and the space S and is sprayed out from the plurality of discharge holes 34 in a shower-like manner. In the above-mentioned dispensing operation, after the container body 2 is tilted and before the body portion 4 is squeezed, the communication hole 60 is sealed by the easily deformable wall portion 28. Therefore, the liquid is not discharged to the outside until the body portion 4 is squeezed, so that the liquid does not drip unexpectedly. Next, when the compression of the body portion 4 is released, the easily deformable wall portion 28 elastically restores to its original shape, so that the gap S disappears and the communication hole 60 is sealed by the easily deformable wall portion 28. When the auxiliary lid 40 is further closed, the easily deformable wall portion 28 is sandwiched between the inner plug 50 of the auxiliary lid 40 and the plug plate 58, returning to the state shown in FIG.

[0028] According to the above-mentioned configuration and action, at least a part of the blocking wall 20 blocking the opening surface 9 of the mouth and neck portion 6 of the container body 2 is formed into an easily deformable wall portion 28 that can bulge upward when the body portion 4 is squeezed, and the plug plate 58 of the inner plug 50 is abutted against the easily deformable wall portion 28. The plug plate 58 is provided with a communication hole 60 that is sealed by the easily deformable wall portion 28, and one or more discharge holes 34 are provided in the easily deformable wall portion 28. Therefore, liquid will not be discharged unless the body portion 4 is squeezed, so that the contents will not splash out even if the container body 2 is simply tilted, and dripping is unlikely to occur. In addition, the upper surface of the stopper plate 58 is formed into a downwardly concave curved surface 59, and the easily deformable wall portion 28 is inverted from a downwardly convex shape to an upwardly convex shape when the body portion 4 is compressed, so that the content liquid can be smoothly and efficiently discharged through the gap S between the easily deformable wall portion 28, which has been inverted into an upwardly convex shape when the body portion is compressed, and the downwardly concave curved surface 59. Furthermore, the inner plug 50 is fitted into the raised portion A of the blocking wall 20, and an outside air inlet passage P with a check valve V is provided between the inner surface of the raised portion A and the inner plug 50, so that the negative internal pressure state after squeezing the body 4 is quickly eliminated and continuous dispensing operations can be performed efficiently. Furthermore, since the easily deformable wall portion 28 is formed so as to be sandwiched between the auxiliary cover 40 and the stopper plate 58 when the cover is closed, the communication hole 60 can be more reliably sealed, thereby preventing dripping. [Explanation of symbols]

[0029] 2: container body 4: body portion 6: neck portion 6a: large diameter portion 6b: narrow diameter portion 6c...Small diameter part 7...Top end 8...Male thread part 9...Opening surface 10: Cap-shaped obturator 12: Mounting tube portion 14: Female thread portion 16: Hinge 20: Blocking wall portion 22: Inward flange 24: Vertical cylinder portion 25...(vertical wall portion) inner peripheral surface 26...tapered wall portion 27...(tapered wall portion) inner surface 28... Easily deformable wall portion 29... Lower surface (of the easily deformable wall portion) 30... Connecting tube portion (extension tube portion) 31: Pressure-welding rib; 32: Cylindrical seal portion; 34: Discharge hole 40: Auxiliary cover; 42: Cover peripheral wall; 43: Finger hook portion; 44: Top plate 46...Descent cylinder part 48...Abutting protrusion 50: inner plug; 52: plug barrel; 54: flange portion; 56: valve body portion; 58: plug plate 59...Top surface (concave curved surface) 60...Communication hole A: Raised portion b: Locking projection e: Annular step f: Engagement ridge i: Stiffening rib n...cutout portion P...outside air introduction passage p1...first flow passage p2...second flow passage R...storage recess S: gap V: check valve

Claims

1. A container body (2) having a mouth and neck part (6) standing from a squeezable body part (4); a cap-shaped obturator (10) that is attached to the mouth and neck portion (6) and has a blocking wall portion (20) that blocks the opening surface (9) of the mouth and neck portion (6); Equipped with At least a part of the closing wall (20) is formed into an easily deformable wall (28) which can expand upward by squeezing the body (4), and one or more discharge holes (34) are opened in the easily deformable wall (28), The present invention is provided with an inner plug (50) disposed below the blocking wall portion (20), the inner plug (50) having a plug plate (58) that contacts the lower surface of the easily deformable wall portion (28) when the easily deformable wall portion (28) is not deformed, and a communication hole (60) that is sealed by the easily deformable wall portion (28) is formed in the plug plate (58); when the body portion (4) is squeezed, the easily deformable wall portion (28) is displaced from a first position when not deformed to a second position when bulged upward, thereby communicating the discharge hole (34) with the inside of the container body (2) through the communication hole (60); The closing wall portion (20) has a raised portion (A) that is raised in a cylindrical shape with a top inside the mouth and neck portion (6) when viewed from above, the top of this raised portion (A) is the easily deformable wall portion (28), and the inside plug (50) is inserted into the raised portion (A), A liquid dispensing container characterized in that an outside air introduction path (P) for introducing outside air from the discharge hole (34) into the inside of the container body (2) is formed between the inner surface of the raised portion (A) and the inner plug (50) while the easily deformable wall portion (28) is sealing the communication hole (60), and a check valve (V) is provided in a part of this outside air introduction path (P) which opens when negative pressure is created inside the container body (2) and closes when the negative pressure is released.

2. The upper surface of the stopper plate (58) is formed into a concave curved surface (59) that is concave downward, The liquid dispensing container according to claim 1, characterized in that the easily deformable wall portion (28) is shaped into a downward convex shape that conforms to the concave curved surface (59), and is formed so as to invert from a downward convex shape to an upward convex shape when the body portion (4) is compressed, and to elastically restore to the downward convex shape when the body portion (4) is released from compression.

3. The cap-shaped closure (10) is provided with an auxiliary lid (40) attached to the cap-shaped closure (10) so that the upper surface of the cap-shaped closure (10) can be opened and closed.

3. The liquid dispensing container according to claim 1, wherein the easily deformable wall portion (28) is formed so as to be sandwiched between the auxiliary lid (40) and the stopper plate (58) in a closed state.

Images