Liquid Container
The liquid container integrates a nozzle and liquid recovery flow path within the container body, addressing the issues of cumbersome disposal and liquid dripping, while facilitating easy pouring and efficient liquid management.
Patent Information
- Application Number
- JP2021125840
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2021-07-30
- Publication Date
- 2025-05-20
- Estimated Expiration
- 2041-07-30
AI Technical Summary
Conventional liquid containers with separate nozzle caps are cumbersome to dispose of and prone to liquid dripping from the nozzle.
A liquid container design featuring a container body with an integrally molded cylindrical nozzle and a liquid recovery flow path that returns leaked liquid radially back to the storage space, preventing external dripping.
The design allows for easy separate disposal and effectively prevents liquid from dripping outside while enabling easy pouring of the liquid content.
Smart Images

Figure 0007680157000001 
Figure 0007680157000002 
Figure 0007680157000003
Abstract
Description
[Technical field]
[0001] The present disclosure relates to a liquid container comprising a container body and a nozzle. [Background technology]
[0002] Conventionally, liquid containers have been known for storing relatively highly viscous liquid contents, such as liquid laundry detergent or fabric softener, in which a nozzle cap with a nozzle is attached to the mouth of a container body that has a storage space for the liquid contents (see, for example, Patent Document 1).
[0003] In such liquid containers, the nozzle is generally formed in a gutter shape and supported by a partition wall of the nozzle cap, with its tip protruding outward from the tip opening of the nozzle cap, making it easy to pour the liquid content through the nozzle to a desired location. [Prior art documents] [Patent documents]
[0004] [Patent Document 1] Patent No. 5094620 Summary of the Invention [Problem to be solved by the invention]
[0005] However, in the conventional liquid containers described above, the nozzle cap, which is a separate member, is attached to the container body that contains the liquid content, so there is room for improvement in that separate disposal is cumbersome.
[0006] The present disclosure is directed to solving such problems, and has an objective to provide a liquid container that prevents liquid from dripping from the nozzle to the outside, while allowing for easy separate disposal. [Means for solving the problem]
[0007] The liquid container of the present disclosure comprises: A container body that defines a storage space for the liquid content; A cylindrical nozzle connected to an upper portion of the container body and directing the content liquid to the outside; a liquid recovery flow path that returns the content liquid radially outside the nozzle to the storage space; is formed by integral molding And, The bottom wall of the liquid recovery flow path has a hollowed-out portion recessed upward from a lower surface of the bottom wall, and the thickness of the bottom wall in the region where the hollowed-out portion is provided is approximately uniform in a direction along the flow path. It is characterized by:
[0008] In addition, in the above-mentioned configuration of the liquid container disclosed herein, it is preferable that the liquid recovery flow path is inclined downward in the circumferential direction, and a communication passage is provided at the lower end of the liquid recovery flow path to connect the liquid recovery flow path to the storage space.
[0010] In addition, the liquid container of the present disclosure has the above-mentioned configuration. 、 It is preferable that a region of the lower surface of the bottom wall other than the recessed portion extends horizontally around the circumferential direction.
[0011] In the liquid container of the present disclosure, in the above-described configuration, it is preferable that an upper surface of the bottom wall of the liquid recovery channel is inclined downward from the radially outer side toward the radially inner side.
[0012] In addition, in the above-mentioned configuration of the liquid container disclosed herein, it is preferable that an outer cylinder is formed radially outside the nozzle, and the liquid recovery flow path is formed at a radial position between the nozzle and the outer cylinder. Effect of the Invention
[0013] According to the present disclosure, it is possible to provide a liquid container that is easy to separate and dispose of while preventing liquid from dripping from the nozzle to the outside. [Brief description of the drawings]
[0014] [Figure 1] 1 is a front half cross-sectional view of a liquid container according to an embodiment of the present disclosure. [Diagram 2]FIG. 2 is a plan view of a liquid container according to an embodiment of the present disclosure. [Diagram 3] FIG. 3 is a cross-sectional view taken along the line AA in FIG. 2. [Figure 4] 4 is an enlarged front cross-sectional view showing a state in which the nozzle in FIG. 3 is covered with a cap. [Diagram 5] 1 is a front half cross-sectional view of a preform used to manufacture a liquid container according to one embodiment of the present disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0015] The present disclosure will now be illustrated in more detail with reference to the drawings.
[0016] A liquid container 100 according to an embodiment of the present disclosure shown in FIG. 1 is suitable for use in storing relatively viscous liquid contents such as liquid laundry detergent or fabric softener, and includes a container body 10, a nozzle 20, and an outer cylinder 30. In this specification, claims, abstract, and drawings, the side where the nozzle 20 is located is referred to as the upper side (upper side in FIG. 1), and the side where the bottom 12 of the container body 10 is located is referred to as the lower side (lower side in FIG. 1). The radially outer side refers to a direction away from the central axis O along a straight line passing through the central axis O of the liquid container 100 extending vertically in FIG. 1 and perpendicular to the central axis O, and the radially inner side refers to a direction toward the central axis O along the straight line. The central axis O in FIG. 1 is used to define the radially outer side and the radially inner side, and does not mean that each member of the liquid container 100 according to this embodiment is always formed axially symmetrically around the central axis O.
[0017] In addition, in this specification, claims, abstract, and drawings, "integral molding" refers to molding as a single unit within a mold, and includes those molded as a single unit by insert molding, two-color molding, etc., but does not include those in which separate parts molded in separate molds are integrated through a post-process that does not involve resin molding, such as bonding.
[0018] The container body 10 is formed in a bottle shape with a body 11 that defines an internal storage space S for the liquid content, a bottom 12 that closes the lower end of the body 11, and a cylindrical mouth 15 that is connected to the upper end of the body 11 via a shoulder 13, and the liquid content (not shown) can be stored in the storage space S. The container body 10 can be made of synthetic resins such as polyethylene (PE), polypropylene (PP), polystyrene (PS), polyethylene terephthalate (PET), etc. The mouth 15 is not limited to a cylindrical shape, and can be formed in other shapes such as an elliptical cylinder or a square cylinder, as long as it is cylindrical.
[0019] As shown in Figs. 1 and 3, the nozzle 20 is integrally molded with the container body 10 so as to be connected to the upper end of the mouth 15 of the container body 10. In this embodiment, the nozzle 20 is formed in a C-shaped cross section, i.e., a gutter-like shape, with a notch 22 extending from one end to the other end along the axial direction at one circumferential location of the substantially cylindrical tubular wall 21, and a chamfered portion 23 is formed on the circumferential edge forming the notch 22 at the upper part of the tubular wall 21. With this configuration, the content liquid contained in the storage space S of the container body 10 can be easily poured to a desired position through the nozzle 20. The nozzle 20 protrudes upward from the upper end of the mouth 15 and is made of the same synthetic resin material as the container body 10.
[0020] The tip of the nozzle 20 is not limited to a shape having an inclined chamfered portion 23, but may have various shapes, such as a shape that is cut so as to be rounded when viewed from the side.
[0021] An outer cylinder 30 for mounting a cap 40 (see FIG. 4) is provided on the radially outer side of the nozzle 20. The outer cylinder 30 is integrally molded with the container body 10 so as to be connected to the upper end of the mouth part 15 of the container body 10, similar to the nozzle 20. The outer cylinder 30 includes a substantially cylindrical peripheral wall 31, a ring-shaped neck ring 32 protruding radially outward at the lower part of the peripheral wall 31, and a bottom wall 33 inclined radially inward downward from the lower end of the peripheral wall 31, and the inner peripheral edge of the bottom wall 33 is connected to the upper end of the mouth part 15 of the container body 10. In this embodiment, the container body 10, the nozzle 20, and the outer cylinder 30 are integrally molded from the same synthetic resin material.
[0022] In this embodiment, the area surrounded by the cylindrical wall 21 of the nozzle 20, the peripheral wall 31 of the outer cylinder 30, and the bottom wall 33 functions as a liquid recovery flow path R that returns the content liquid that has leaked out radially outward from the nozzle 20 into the storage space S. In other words, the bottom wall 33 extending radially inward downward from the lower end of the peripheral wall 31 of the outer cylinder 30 functions as the bottom wall 33 of the liquid recovery flow path R.
[0023] The upper surface of the bottom wall 33 of the liquid recovery flow passage R is formed so that the left end is the highest and the right end where the notch 22 is provided is the lowest in FIG. 2 and FIG. 3. That is, the bottom wall 33 is inclined downward so as to gradually become lower along the flow passage from the left end to the right end. In FIG. 2, the liquid recovery flow passage R has a path from the left end to the right end clockwise along the flow passage and a path from the left end to the right end counterclockwise along the flow passage, and in either path, the upper surface of the bottom wall 33 is inclined so as to gradually become lower from the left end to the right end. That is, the upper surface of the bottom wall 33 of the liquid recovery flow passage R is formed in a spiral shape over half a circumference from the left end to the right end. In addition, the bottom wall 33 is inclined downward from the radial outside to the radial inside at the same circumferential position. The fact that the upper surface of the bottom wall 33 is gradually lowered from the left end to the right end in FIG. 2 and FIG. 3 means that the upper surface of the bottom wall 33 is gradually lowered from the left end to the right end at the same radial position (the same width direction position of the flow passage).
[0024] In this embodiment, the lower end of the notch 22 provided at one location in the circumferential direction of the nozzle 20 serves as a communication passage 35 that communicates the liquid recovery flow path R and the storage space S. The liquid content that has leaked out radially outward from the nozzle 20 enters the liquid recovery flow path R and moves downward from the left end to the right end of the bottom wall 33 in Figures 2 and 3. The liquid content that has moved inside the liquid recovery flow path R to the right end of the bottom wall 33 moves further radially inward and is returned to the storage space S of the container body 10 through the communication passage 35 (see Figures 2 and 3).
[0025] In this embodiment, as shown in FIG. 3 and other figures, the bottom wall 33 of the liquid recovery flow path R is thinned in an area except for the outer edge 34 by providing a hollowed-out portion 33a recessed upward from the lower surface of the bottom wall 33. The thickness of the bottom wall 33 in the hollowed-out area is formed to be substantially uniform in the direction along the flow path. The thickness of the bottom wall 33 in the hollowed-out area is also substantially uniform in the radial direction. In other words, the hollowed-out area of the bottom wall 33 of the liquid recovery flow path R is inclined downward from the left end to the right end in FIG. 2 and FIG. 3 and downward toward the inside in the radial direction, in addition to the upper surface through which the content liquid flows, the lower surface.
[0026] As described above, by providing the hollowed-out portion 33a in the bottom wall 33 of the liquid recovery flow path R and configuring the thickness of the hollowed-out region to be uniform, particularly in the circumferential direction, when integrally molding a preform 200 (see FIG. 5) described below for manufacturing the liquid container 100, the molten resin tends to flow evenly around the region of the bottom wall 133 in the mold, thereby suppressing the occurrence of molding defects such as sink marks. Note that a configuration may be adopted in which the hollowed-out portion 33a is not provided. When the hollowed-out portion 33a is not provided, for example, the lower surface of the bottom wall 33 may be tapered to approximately the same height in the circumferential direction, and the thickness of the bottom wall 33 may be gradually reduced in the circumferential direction.
[0027] In this embodiment, the lower surface of the outer edge 34 of the bottom wall 33, which does not have the hollowed-out portion 33a, is configured to extend in a substantially horizontal direction in the circumferential direction. That is, the lower surface of the outer edge 34 is formed to be at substantially the same height regardless of the circumferential position. With this configuration, for example, when forming the liquid container 100 by biaxial stretch blow molding of the preform 200 described later, by abutting and fixing the lower end of the outer edge 34 of the bottom wall 33 against a reference surface of the blow molding die, the preform 200 can be mounted in the blow molding die without tilting, even if the preform 200 is not accurately aligned in the circumferential direction with respect to the blow molding die.
[0028] Incidentally, the preform 200 may be fixed by abutting the upper or lower surface of the neck ring 32, instead of the outer edge 34 of the bottom wall 33, against a reference surface of the blow molding die.
[0029] In addition, in this embodiment, the area other than the outer edge 34 of the bottom wall 33 is hollowed out, and the outer edge 34 is configured to abut against a reference surface of the blow molding mold. However, this is not limited to this form, and for example, the area other than the inner edge of the bottom wall 33 may be hollowed out, and the inner edge may be configured to abut against a reference surface of the mold.
[0030] A male thread portion 31a for attaching a cap 40 (described later) by screw engagement is provided on the outer peripheral surface of the upper portion of the peripheral wall 31 of the outer cylinder 30. Note that instead of the male thread portion 31a, an annular protrusion for attaching the cap 40 by tapping engagement may be provided on the peripheral wall 31.
[0031] As shown in FIG. 4, cap 40 comprises an outer peripheral wall 41 covering nozzle 20 from the radial outside, a top wall 43 closing the upper end of outer peripheral wall 41, a flange portion 44 protruding radially outward from the lower end of outer peripheral wall 41, a mounting tube 45 hanging down from the outer edge of flange portion 44, a sealing wall 46 hanging down from the underside of flange portion 44 radially inward of mounting tube 45 and abutting against the inner surface of peripheral wall 31 to provide a liquid-tight seal, and an inner tube 47 hanging down from the underside of flange portion 44 radially inward of sealing wall 46.
[0032] A female thread portion 45a is formed on the inner surface of the mounting tube 45 to threadably engage with the male thread portion 31a formed on the peripheral wall 31 of the outer tube 30. As shown in Fig. 4, the female thread portion 45a of the cap 40 and the male thread portion 31a of the outer tube 30 are threadably engaged, the seal protrusion 44a on the lower surface of the flange portion 44 is brought into contact with the upper end surface of the peripheral wall 31, and the seal wall 46 is brought into contact with the inner surface of the peripheral wall 31, thereby achieving a liquid-tight seal against the outside.
[0033] In this embodiment, the cap 40 has a role of preventing the content liquid from leaking out from the nozzle hole 21a defined by the nozzle 20, but it can function as a measuring cap by providing a measuring scale, for example, by a rib-like protrusion or printed markings on the outer peripheral wall 41. When the cap 40 is used as a measuring cap, the content liquid can be easily measured by making the cap 40 out of, for example, a transparent or translucent resin.
[0034] When the cap 40 is also used as a measuring cap, the top wall 43 of the cap 40, which is formed in a flat plate shape, is placed on the bottom side and the opening of the cap 40 is placed on the top side, so that liquid can be measured.
[0035] 4, when the cap 40 is rotated about the central axis O to release the screw connection between the cap 40 and the outer cylinder 30, the cap 40 can be moved upward with respect to the container body 10. Then, when the screw engagement is completely released, the cap 40 can be removed from the outer cylinder 30 by pulling it upward.
[0036] With the cap 40 removed from the outer tube 30 and the nozzle 20 exposed, the container body 10 is tilted from an upright position in which the tip of the nozzle 20 faces upward to an inclined position in which the notch 22 faces upward, so that the liquid content in the storage space S can be poured out from the tip of the nozzle 20 through the nozzle hole 21a. At this time, the liquid content in the storage space S of the container body 10 is guided along the nozzle 20 formed in a gutter shape and poured out from the tip of the nozzle 20. Furthermore, when the container body 10 is returned to the upright position after the liquid content is poured out, even if the liquid content attached to the tip of the nozzle 20 drips along the outer peripheral surface of the nozzle 20, the liquid content does not drip outside the outer tube 30, but drips downward along the nozzle 20 and is received by the bottom wall 33 of the liquid recovery flow path R. The liquid content that drips into the liquid recovery flow path R moves along the inclination of the upper surface of the bottom wall 33 and is returned to the storage space S of the container body 10 via the communication path 35. Therefore, according to this liquid container 100, it is possible to prevent the liquid content from dripping to the outside while allowing the liquid content to be poured out from the nozzle 20.
[0037] After use, the cap 40 can be attached by threading the female thread portion 45a of the cap 40 back into the male thread portion 31a of the outer cylinder 30, thereby closing the nozzle 20.
[0038] The liquid container 100 of this embodiment can be formed, for example, by integrally molding the preform 200 shown in Figure 5 by injection molding or the like, then fixing the outer edge portion 134 of the bottom wall 133 of the liquid recovery flow path R to the mold by abutting it against a reference surface of the blow molding mold, and performing biaxial stretch blow molding.
[0039] Preform 200 comprises a main body 110 having a test tube shape, and a nozzle 120 and an outer cylinder 130 integrally molded at the upper end of main body 110. Main body 110 comprises a cylindrical body 111 and a substantially hemispherical bottom 112 that closes the lower end of body 111. Main body 110 is a portion that forms mouth 15, shoulder 13, body 11 and bottom 12 of liquid container 100 by biaxial stretch blow molding of preform 200, and has an internal space S2.
[0040] Nozzle 120 and outer cylinder 130 of preform 200 have the same shapes as nozzle 20 and outer cylinder 30 of liquid container 100, and are portions that do not expand during biaxial stretch blow molding. As shown in Fig. 5, nozzle 120 is formed in a C-shaped cross section, i.e., a gutter shape, with cutout portion 122 extending from one end to the other end along the axial direction at one location in the circumferential direction of substantially cylindrical tube wall 121, and chamfered portion 123 is formed on the circumferential edge forming cutout portion 122 at the upper part of tube wall 121.
[0041] The outer tube 130 of the preform 200 comprises a substantially cylindrical peripheral wall 131, a circular ring-shaped neck ring 132 protruding radially outward at the lower part of the peripheral wall 131, and a bottom wall 133 that slopes radially inward downward from the lower end of the peripheral wall 131, and the inner peripheral edge of the bottom wall 133 is connected to the upper end of the main body portion 110.
[0042] In this embodiment, the area surrounded by the cylindrical wall 121 of the nozzle 120, the peripheral wall 131 of the outer cylinder 130, and the bottom wall 133 forms a liquid recovery flow path R. The lower surface of the bottom wall 133 is formed with a hollowed-out portion 133a that is recessed upward, and an outer edge portion 134 of the bottom wall 133 that does not have a hollowed-out portion extends at approximately the same height in the circumferential direction.
[0043] When forming the liquid container 100 using the preform 200 shown in Fig. 5, the outer edge 134 of the bottom wall 133 of the preform 200 is abutted against a reference surface of a blow molding die and fixed, and the main body 110 is stretched in the axial direction by a stretching rod while a pressurized fluid is supplied into the preform 200 to perform biaxial stretch blow molding. In this embodiment, only the main body 110 is stretched in the axial and radial directions by blow molding, and the mouth 15, shoulder 13, body 11, and bottom 12 shown in Fig. 1 are formed to form the liquid container 100. In this manufacturing method for the liquid container 100, only the main body 110 of the preform 200 in which the main body 110, nozzle 120, and outer cylinder 130 are integrally molded is expanded by biaxial stretch blow molding, thereby forming the liquid container 100 in which the container body 10, nozzle 20, and outer cylinder 30 are integrally molded. Since the liquid recovery flow path R is defined by the nozzle 20 and the outer cylinder 30, the liquid container 100 becomes a container in which the container body 10, the nozzle 20 and the liquid recovery flow path R are integrally formed.
[0044] As described above, in this embodiment, the container body 10 that defines the storage space S for the content liquid, the cylindrical nozzle 20 that is connected to the upper part of the container body 10 and directs the content liquid to the outside, and the liquid recovery flow path R that returns the content liquid radially outside the nozzle 20 to the storage space S are configured to be formed by integral molding. By adopting such a configuration, it is possible to effectively prevent the content liquid from dripping to the outside while pouring the content liquid from the nozzle 20. In addition, since the container body 10, the nozzle 20, and the liquid recovery flow path R are integrally molded, the amount of resin used can be reduced, and since there is no need to separate the nozzle cap and the container body, separate disposal is also made easy.
[0045] In this embodiment, the liquid recovery flow path R is inclined downward in the circumferential direction, and a communication passage 35 that connects the liquid recovery flow path R to the storage space S is provided at the lower end of the liquid recovery flow path R. By adopting such a configuration, the content liquid that has leaked out to the outside of the nozzle 20 can be efficiently returned into the storage space S by utilizing the inclined surface of the liquid recovery flow path R.
[0046] In this embodiment, bottom wall 33 of liquid recovery flow path R has a hollowed-out portion 33a recessed upward from the lower surface of bottom wall 33, and the thickness of bottom wall 33 in the region where the hollowed-out portion is provided is configured to be approximately uniform in the direction along the flow path. By adopting such a configuration, when integrally molding preform 200 for manufacturing liquid container 100, molten resin tends to flow evenly around bottom wall 133 in the mold, thereby suppressing the occurrence of molding defects such as sink marks.
[0047] In this embodiment, the bottom wall 33 of the liquid recovery flow path R has a hollowed-out portion 33a recessed upward from the lower surface of the bottom wall 33, and the area on the lower surface of the bottom wall 33 other than the hollowed-out portion 33a is configured to extend horizontally in the circumferential direction. By adopting such a configuration, the area of the bottom wall 33 other than the hollowed-out portion 33a is abutted against a reference surface of the blow molding die and fixed, so that the preform 200 can be mounted in the blow molding die without tilting, even if the preform 200 is not accurately aligned in the circumferential direction with respect to the blow molding die.
[0048] In this embodiment, the upper surface of the bottom wall 33 of the liquid recovery flow path R is configured to be inclined downward from the radially outer side toward the radially inner side. By adopting such a configuration, the content liquid in the liquid recovery flow path R can be collected radially inward, and the cutout portion 22 of the nozzle 20 can serve as a communication path 35 to easily return the content liquid to the storage space S.
[0049] In this embodiment, an outer cylinder 30 is formed on the radial outside of the nozzle 20, and the liquid recovery flow path R is configured to be formed at a radial position between the nozzle 20 and the outer cylinder 30. By adopting such a configuration, the space between the nozzle 20 and the outer cylinder 30, to which the cap 40 necessary for preventing leakage of the content liquid is attached, can be used as the liquid recovery flow path R, so that liquid leakage from the liquid container 100 can be prevented while maintaining a compact configuration.
[0050] Although the present disclosure has been described based on the drawings and embodiments, it should be noted that those skilled in the art can easily make various modifications and corrections based on the present disclosure. Therefore, it should be noted that these modifications and corrections are included in the scope of the present invention. For example, the functions included in each component can be rearranged so as not to cause logical inconsistency, and multiple components can be combined into one or divided. It should be understood that these are also included in the scope of the present invention.
[0051] For example, in this embodiment, the notch 22 provided in the nozzle 20 constitutes the communication passage 35 that communicates between the liquid recovery passage R and the storage space S, but this is not limited to this embodiment. The cylindrical wall 21 of the nozzle 20 or the liquid recovery passage R may be configured to have a communication hole that communicates between the liquid recovery passage R and the storage space S.
[0052] In the present embodiment, the bottom wall 33 of the liquid recovery flow path R is provided with a hollowed-out portion 33a recessed upward from the lower surface on the radially inner side, but this is not limited to the embodiment. The bottom wall 33 does not need to be provided with the hollowed-out portion 33a, and the hollowed-out portion 33a may be provided on the radially outer side or in the radial center position. [Explanation of symbols]
[0053] 10 Container body 11 Torso 12 Bottom 13 Shoulder 15 Mouth 20 Nozzles 21 Cylinder wall 21a Nozzle hole 22 Cutout 23 Chamfered part 30 Outer cylinder 31 Peripheral wall 31a Male thread 32 Neck Ring 33 Bottom Wall 33a Hollow section 34 Outer edge 35 Communication path 40 Cap 41 Peripheral wall 43 Ceiling Wall 44 Flange part 44a Seal protrusion 45 Mounting tube 45a Female thread 46 Seal Wall 47 Inner cylinder 100 liquid containers 110 Main body 111 Torso 112 Bottom 120 Nozzle 121 Cylinder wall 122 Notch 123 Chamfered part 130 Outer cylinder 131 Peripheral wall 132 Neck Ring 133 Bottom wall 133a Hollow section 134 Outer edge 200 preforms O center axis R Liquid recovery flow path S Storage space S2 interior space
Claims
1. A container body that defines a storage space for the liquid content; A cylindrical nozzle connected to an upper portion of the container body and directing the content liquid to the outside; a liquid recovery flow path that returns the content liquid radially outside the nozzle to the storage space; is formed by integral molding, A liquid container characterized in that a bottom wall of the liquid recovery flow path has a hollowed-out portion recessed upward from the underside of the bottom wall, and the thickness of the bottom wall in the area where the hollowed-out portion is provided is approximately uniform in the direction along the flow path.
2. 2. The liquid container according to claim 1, wherein the liquid recovery flow passage is inclined downward in a circumferential direction, and a communication passage is provided at a lower end of the liquid recovery flow passage for connecting the liquid recovery flow passage with the storage space.
3. A liquid container as described in claim 1 or 2, wherein the area on the underside of the bottom wall other than the hollowed-out portion extends horizontally in the circumferential direction.
4. 4. The liquid container according to claim 1, wherein an upper surface of a bottom wall of the liquid recovery channel is inclined downward from a radially outer side toward a radially inner side.
5. 5. The liquid container according to claim 1, wherein an outer cylinder is formed radially outward of the nozzle, and the liquid recovery flow path is formed at a radial position between the nozzle and the outer cylinder.
Citation Information
Patent Citations
JP1975094620A
liquid dispensing container
JP1987090343U
JP1988064640U
Hollow container
JP2013173548A
Synthetic-resin-made container with window, preform and preform injection molding method
JP2015009451A