Bath agent container
The bath additive container efficiently distributes bath additives by generating foaming gas to float and rotate, addressing the slow dissolution and manual stirring issues of prior containers, ensuring even distribution and comfort during bathing.
Patent Information
- Application Number
- JP2024012040
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-01-30
- Publication Date
- 2025-08-12
AI Technical Summary
Existing bath additive containers take too long to dissolve and distribute bath additives evenly in a bathtub, requiring manual stirring and leaving undissolved additives that can cause discomfort during bathing.
A bath additive container with a container body and lid that generates foaming gas from a foaming agent, allowing the container to float and rotate, distributing the additives efficiently through release openings while maintaining an upright position.
The container quickly dissolves and distributes bath additives throughout the bathtub, preventing discomfort and simplifying the bathing process by eliminating the need for manual stirring.
Smart Images

Figure 2025117286000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to a bath additive container that can efficiently distribute bath additives throughout a bathtub. [Background technology]
[0002] Conventionally, there has been known a bath additive container such as that described in Patent Document 1. This bath additive container has a window in the wall of the container for dissolving the bath additive, and a float is placed inside the container so that the buoyancy of the float pushes up the underside of the top of the lid, allowing the container to float in the bathtub and for the bath additive to be dissolved through the window into the bathwater. [Prior art documents] [Patent documents]
[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2006-333947 Summary of the Invention [Problem to be solved by the invention]
[0004] Bath additives are generally added directly to the bathwater, but some remain undissolved, which can be stepped on by the feet while bathing, causing discomfort. On the other hand, when using the bath additive container described above, such discomfort is not caused, but it takes time for the entire amount of bath additive to dissolve, and the bath additive does not spread quickly enough to spread throughout the bathtub, so it is necessary to stir the bath additive before bathing, which is time-consuming and leaves room for improvement.
[0005] In view of the above-mentioned problems of the prior art, the present invention aims to provide a bath additive container that can efficiently distribute the bath additive throughout the bathwater in a short time. [Means for solving the problem]
[0006] The bath additive container of the present invention, developed to achieve the above object, comprises a container body for containing a bath additive containing a foaming agent, and a lid body removably attached to the upper opening of the container body, A bath additive container in which the container body with the lid attached is placed into a bathtub, the bath additive is dissolved in the bathwater in the bathtub, and foaming gas is generated from the foaming agent, The container body includes a peripheral wall having the upper end opening formed therein, and a bottom wall connected to the lower end of the peripheral wall and cooperating with the peripheral wall to form a storage space for the bath agent therein; The bottom wall is provided with one or more openings through which bathwater in the bathtub flows into the storage section to dissolve the bath agent and generate foaming gas from the foaming agent; The peripheral wall has a passageway connected to the storage section, and at least one release opening is provided for releasing the bath agent dissolved in the storage section together with the foaming gas from the outer peripheral surface of the peripheral wall.
[0007] In the bath additive container of the present invention, it is preferable that the release opening is opened in a direction along the periphery of the peripheral wall and has an open end that rotates the container body together with the lid body by the propulsive force involved in the release of the bath additive from the storage section.
[0008] In addition, in the bath additive container of the present invention, it is preferable that, when the lid is attached, the container body floats in the bath water due to the buoyancy of the foamed gas stored on the inner surface of the lid.
[0009] Furthermore, in the bath agent container of the present invention, it is preferable that the bottom wall has a curved shape that is convex downward and has a weight on its upper surface that holds the container body in an upright position.
[0010] Furthermore, in the bath additive container of the present invention, it is preferable that the lid body has one or more retaining ribs that are suspended from the top wall of the lid body and are positioned on the upper surface of the bath additive contained in the storage section to prevent the bath additive from floating within the storage section.
[0011] Furthermore, in the bath additive container of the present invention, it is preferable that at least one of the container body and the lid body has a recess that forms an air layer between the lid body and the container body when the lid body is attached to the container body. [Effects of the Invention]
[0012] With the bath additive container of the present invention, the container body with the lid attached is dropped into a bathtub, and the bath additives inside the container are dissolved by the bath water flowing in through an opening in the bottom wall of the container body. At the same time, foaming gas (carbon dioxide gas) is generated from the foaming agent contained in the bath additives, and the buoyancy of the foaming gas pushes the lid body upward, causing the bath additive container to float.
[0013] Furthermore, according to the bath additive container of the present invention, the foaming gas that fills the container is forcefully ejected from the release opening provided on the peripheral wall of the container body, and the propulsive force of the ejected foaming gas causes the container body to rotate together with the lid in the direction opposite to the ejection direction and move around in the bathtub.As a result, the dissolved bath additive is diffused (stirred) into the bath water together with the foaming gas from the release opening, and can be efficiently distributed throughout the bathtub.
[0014] Furthermore, according to the present invention, the exterior shape of the bottom wall of the container body is a curved shape that is convex downward, and a weight (weight) is provided on the upper surface, which stabilizes the center of gravity and allows the container body to always be kept in an upright position. For example, even if the container sinks or tilts in the bathwater when placed in a bathtub, it will return to the upright position and maintain that position. In this specification, the "upright position" refers to the state in which the container is floating in the bathwater, with the lid at the top and the container body at the bottom.
[0015] Furthermore, according to the present invention, a holding rib is attached to the top wall of the lid, so that the holding rib can hold down the bath additive from above. This prevents the bath additive from floating up during use and prevents the bath additive from blocking the release opening on the peripheral wall of the container body. The bath additive also serves as a weight for the container body, and the holding rib prevents the bath additive from moving upward, thereby maintaining the container body in an upright position.
[0016] Furthermore, according to the present invention, by providing a recess that creates an air layer between the lid and the container body, the bath additive container can be kept floating on the surface of the water or in the bathwater even when the foaming gas becomes low or when all the bath additives are consumed and the foaming gas loses its buoyancy, which has the advantage that the bath additive container will not be accidentally stepped on while bathing and is easy to retrieve. [Brief explanation of the drawings]
[0017] [Figure 1] 1A to 1C are diagrams showing one embodiment of a bath agent container according to the present invention, in which (a) is a plan view, (b) is a front view, and (c) is a bottom view. [Figure 2] (a) is a cross-sectional view taken along line AA in FIG. 1, (b) is a cross-sectional view taken along line BB in FIG. 2(a), and (c) is a cross-sectional view taken along line CC in FIG. 2(a) (weights not shown). [Figure 3] 2(a) is a cross-sectional view of FIG. 2(a) illustrating the state in which bath water flows into the container body and foaming gas is generated from the bath additives, and FIG. 2(b) is a cross-sectional view of FIG. 2(b) illustrating the state in which foaming gas is released from the release opening of the container body and the container body rotates due to the propulsive force associated with the release. [Figure 4] 10 is a diagram showing how the bath agent container according to the present invention returns to the upright position by a weight attached to the container body. FIG. [Figure 5] 10A and 10B are diagrams showing another embodiment of a bath agent container according to the present invention. DETAILED DESCRIPTION OF THE INVENTION
[0018] An embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows one embodiment of a bath additive container according to the present invention, with (a) being a plan view, (b) being a front view, and (c) being a bottom view. FIG. 2(a) is a cross-sectional view taken along line AA in FIG. 1, (b) being a cross-sectional view taken along line BB in FIG. 2(a), and (c) being a cross-sectional view taken along line CC in FIG. 2(a) (weights not shown). FIG. 3 illustrates the bath additive container of FIG. 1 in use. (a) shows the cross-sectional view of FIG. 2(a) in which bathwater flows into the container body and foaming gas is generated from the bath additive. (b) shows the cross-sectional view of FIG. 2(b) in which foaming gas is released from the release opening of the container body and the container body rotates due to the propulsive force associated with the release. FIG. 4 shows the bath additive container according to the present invention returning to an upright position due to a weight attached to the container body. FIG. 5 shows another embodiment of a bath additive container according to the present invention.
[0019] In Figures 1 to 5, symbol 1 denotes a bath additive container that has a bath additive storage section 23 inside and is used by being dropped into a bathtub, symbol 2 denotes the container body that stores the bath additive, and symbol 3 denotes a lid that is attached to the upper end opening 21a of the container body 2.
[0020] Container body 2 has a cylindrical peripheral wall 21 with an upper opening 21a, and a bottom wall 22 connected to the lower end of peripheral wall 21, with a storage area 23 for bath additives 4 formed inside. Bottom wall 22 has a downwardly convex curved appearance and has one or more openings 24 through which bath water flows into container body 2 when bath additive container 1 is dropped into the bathtub, as described below.
[0021] In addition, one or more vertical ribs 25 (four in the figure) are provided on the upper surface of the bottom wall 22, and the bath additive 4 is placed on the vertical ribs 25. It is preferable that the vertical ribs 25 are formed integrally with the container body 2.
[0022] Weights 5 are provided in gaps 25a between the ends of the vertical ribs 25 in the direction of the container axis L. Weights 5 are preferably made of metal, but the material is not particularly limited. The weight of weight 5 is adjusted appropriately so that bath additive container 1 (container body 2 and lid 3) can float on or in the bath water due to the buoyancy caused by the foaming gas generated from bath additives 4, as described below.
[0023] The peripheral wall 21 has a flange 27 extending outward from the outer periphery at a position higher than the bath additive 4, and one or more release openings 26 (two are shown at opposing positions across the container axis L) connected to the underside of the flange 27. As shown in FIG. 2(b), the release openings 26 are connected to openings 28 in the peripheral wall 21 and have passages 26a protruding outward from the peripheral wall 21. As shown in FIG. 2(b), the passages 26a are preferably provided in pairs at opposing positions on the peripheral wall 21, and the pair of passages 26a are preferably arranged to open (extend) in the same direction around the peripheral wall 21. This allows foamed gas generated from the bath additive within the container body 2 to pass through the openings 28 and the passages 26a and be released from the open end 26b. The propulsive force associated with this release prevents the container body 2 from tilting or wobbling, allowing it to rotate in an upright position. Note that multiple pairs of release openings 26 (passages 26a) may be provided.
[0024] The container body 2 can be manufactured using a material such as synthetic resin, but the material is not particularly limited. In addition, in this embodiment, a cylindrical container body 2 is shown as an example, but the shape of the container body 2 can be changed as appropriate and is not limited to the shape shown in the drawings.
[0025] The lid body 3 has a top wall 31, a peripheral wall 32 hanging down from the edge of the top wall 31, a flange portion 33 extending outward from the lower end of the peripheral wall 32, and a retaining rib 34 hanging down from the underside of the top wall 31.
[0026] The inner peripheral surface of the peripheral wall 32 has a female thread 35, which can be threadedly engaged with a male thread 29 provided on the outer peripheral surface of the peripheral wall 21 of the container body 2, thereby allowing the lid 3 to be detachably attached to the container body 2, and the lower surface of the top wall 31 of the lid 3 comes into contact with the upper end surface of the container body 2, thereby sealing the container body 2. The lid 3 may also be attached to the container body 2 by an undercut. In addition, the outer peripheral surface of the peripheral wall 32 is provided with a plurality of vertical ribs 36 that act as an anti-slip surface when attaching or detaching the lid 3.
[0027] When the lid body 3 is attached to the container body 2, the underside of the flange portion 33 matches the upper surface of the flange portion 27 of the container body 2, and this portion can be used as a handhold when lifting the bath additive container 1 by hand, and this portion also allows the bath additive container 1 to float while maintaining balance on or in the bath water.
[0028] In this embodiment, the holding ribs 34 are four rod-shaped ribs provided at the center of the top wall 31 and at 90° intervals around the circumference, but the shape and number of the holding ribs 34 are not particularly limited as long as their tips are positioned on the top surface of the bath additives 4 contained in the storage section 23 of the container body 2 and can prevent the bath additives 4 from floating within the storage section 23.
[0029] Bath additive 4 is not particularly limited as long as it contains a foaming agent. The foaming agent may be a blend of carbonate and organic acid, and any foaming agent may be used as long as the carbonate and organic acid react to generate carbon dioxide gas when added to bathwater. Bath additives containing such foaming agents have been widely used because they provide the enjoyment of the effervescent sensation caused by the carbon dioxide gas and the blood circulation-promoting effect of the carbon dioxide gas. Examples of carbonates include sodium carbonate, sodium bicarbonate, magnesium carbonate, potassium carbonate, and calcium carbonate. Examples of organic acids include succinic acid, fumaric acid, malic acid, adipic acid, benzoic acid, and citric acid.
[0030] As shown in Figure 3(a), when bath additive container 1 containing bath additive 4 is placed in a bathtub, bath water flows in through opening 24 provided in bottom wall 22 of container body 2, dissolving bath additive 4, and foaming gas is generated from the foaming agent contained in bath additive 4, filling container body 2.
[0031] The foaming gas filling container body 2 pushes up lid 3 by its buoyancy, causing bath additive container 1 to float on the surface of the bath water. As the foaming gas fills container body 2, it passes through opening 28 in peripheral wall 21, passes through passage 26a of release opening 26, and is forcefully released into the bath water from opening end 26b. At this time, bath additive 4 dissolved in storage section 23 is also eluted from opening end 26b along with the foaming gas. The buoyancy of the foaming gas can be adjusted by the amount of foaming gas filling container body 2 (filling space), and bath additive container 1 can be kept in the bath water rather than on the surface while the foaming gas is being released and the bath additive 4 is being eluted.
[0032] When the bath agent 4 is dissolved in the bath water, it is pressed down from above by the pressing rib 34 of the lid body 3, so it does not float up, and the release opening 26 is not blocked by the bath agent 4.
[0033] When the foaming gas is released into the bathwater from the opening end 26b, the propulsive force associated with the release of the foaming gas causes the container body 2 (lid body 3) to rotate in the direction opposite to the direction in which the foaming gas is released, as shown in Figure 3(b), and the container body 2 (lid body 3) moves around in the bathtub, efficiently dispersing (stirring) the bath additives 4 in the bathtub and spreading them throughout.
[0034] Furthermore, when bath additive container 1 is placed in the bathtub or rotated, it may tilt in the bathwater or on the surface of the water as shown in Figure 4(a), but the weight 5 provided on the top surface of bottom wall 22 of container body 2 stabilizes the center of gravity, and it naturally returns to an upright position as shown in Figure 4(b). Bath additive 4 also serves as a weight.
[0035] 5 is a diagram showing another embodiment of the bath agent container 1 of the present invention. Note that a description of the same configuration as in the previous embodiment will be omitted. In the bath additive container 1 of this embodiment, a downward-opening recess 37 is provided in the flange 33 formed on the lid 3, and a rib 27a protruding upward from the top surface of the flange 27 provided on the container body 2 is fitted into the inner wall surface of the recess 37, thereby forming an air layer. The recess 37 may also be provided in the flange 27 of the container body 2, in which case the recess 37 is provided as an upward-opening recess. The recess 37 may also be annular, or may be provided intermittently around the flange 33 (27).
[0036] By providing an air layer between the container body 2 and the lid 3 in this way, even when the foaming gas is reduced or when all the bath additives 4 are consumed and the foaming gas loses its buoyancy, the bath additive container 1 can be kept floating on the surface of the water or in the bathwater, preventing accidental stepping on the bath additive container 1 while bathing and making it easy to retrieve. [Explanation of symbols]
[0037] 1 bath additive container 2 Container body 21 Peripheral wall 21a Top opening 22 Bottom wall 23 Storage unit 24 Open hole 25 Vertical ribs 25a Gap 26 Discharge opening 26a aisle 26b Open end 27 Flange 27a Rib 28 Aperture 29 Male thread 3 Lid 31 Top wall 32 Peripheral wall 33 Flange 34 Presser rib 35 female thread 36 Vertical rib 37 Recess 4. Bath additives 5 weights
Claims
1. The bath additive comprises a container body for containing a bath additive containing a foaming agent, and a lid body removably attached to an upper opening of the container body, A bath additive container in which the container body with the lid attached is placed into a bathtub, the bath additive is dissolved in the bathwater in the bathtub, and foaming gas is generated from the foaming agent, The container body includes a peripheral wall having the upper end opening formed therein, and a bottom wall connected to the lower end of the peripheral wall and cooperating with the peripheral wall to form a bath agent storage compartment therein; The bottom wall is provided with one or more openings through which bath water in the bathtub flows into the storage section to dissolve the bath agent and generate foaming gas from the foaming agent; A bath additive container characterized in that the peripheral wall has a passage leading to the storage section and at least one release opening for releasing the bath additive dissolved in the storage section together with the foaming gas from the outer surface of the peripheral wall.
2. The bath additive container according to claim 1, characterized in that the release opening is open in a direction along the periphery of the peripheral wall and has an open end that rotates the container body together with the lid body by the propulsive force associated with the release of the bath additive from the storage section.
3. 3. The bath additive container according to claim 1, wherein the container body floats in the bathwater due to the buoyancy of the foamed gas stored in the inner surface of the lid when the lid is attached.
4. 3. The bath additive container according to claim 1, wherein the bottom wall has a curved shape that is convex downward, and a weight is provided on the upper surface of the bottom wall to hold the container body in an upright position.
5. A bath additive container as described in claim 1 or 2, characterized in that the lid body is held hanging down by the top wall of the lid body and has one or more holding ribs located on the upper surface of the bath additive contained in the storage section to prevent the bath additive from floating within the storage section.
6. A bath additive container as described in claim 1 or 2, characterized in that at least one of the container body and the lid body has a recess that forms an air layer between the lid body and the container body when the lid body is attached to the container body.
Citation Information
Patent Citations
Bath agent container
JP2006333947A