airless container

Abstract

To provide an airless container that includes a container body, a stop piston, a lid, a base portion, and at least one adjusting tool.SOLUTION: The container body is equipped with a body section that has a container opening and a bottom opening, and the stop piston is movably provided within the container body, dividing the internal space of the container body into a storage area that is not connected and an adjustment area. The lid is provided at the container opening so that the storage area forms a sealed space, and the base section is provided at the bottom of the container body, featuring a female thread and a hole that communicates with the adjustment area. The adjusting device comprises a frustum section and a male thread section, having an upper platform at the top and a lower opening at the bottom. The male thread section corresponds to the female thread of the base section's hole, and the adjusting device is screwed into the hole of the base section, extending into the adjustment area to push the stop piston. The airless container is used for the storage of foods and materials, reducing the air inside the container so that the top surface of the contents comes close to the container opening.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present disclosure relates to airless containers, and particularly to airless containers with adjustable container volume.

Background Art

[0002] Conventional containers for storing food and liquids have limited airtightness and preservation effects. When the amount of the contents does not completely fill the internal space of the container, a space is generated between the liquid level or the surface of the contents and the container opening, and air such as oxygen and water vapor that is likely to cause chemical reactions is trapped therein, and deterioration is prevented only by putting a desiccant or an antioxidant.

[0003] When a better preservation effect is desired, it is necessary to use a vacuum container having an air extraction structure that can evacuate the air in the container and minimize the amount of air enclosed therein. However, this technique is relatively cumbersome to operate and requires an additional air extraction procedure. In the case of a liquid with a low boiling point that is easily vaporized, waste and component changes also occur, and the container is bulky and takes up space due to the air extraction structure.

Summary of the Invention

Means for Solving the Problems

[0004] In the airless containers of some embodiments of the present disclosure, there is provided an airless container capable of reducing the amount of air remaining in the container.

[0005] In the airless containers of some embodiments of the present disclosure, there is provided an airless container that enables the liquid level or the top surface of the contents to approach the opening of the container.

[0006] According to several embodiments, an airless container is proposed comprising a container body, a stop piston, a lid, a base, and at least one adjuster. The container body comprises a body having a container mouth and a bottom opening, the stop piston is movably mounted within the container body, the internal space of the container body is divided into a storage area and an adjustment area which are not in communication, the lid is mounted on the container mouth such that the storage area forms a sealed space, the base is mounted on the bottom of the container body and has a hole having a female thread that communicates with the adjustment area, the adjuster comprises a frustoconical portion and a male threaded portion, having a top base portion at the top and a bottom opening portion at the bottom, the male threaded portion corresponds to the female thread of the hole in the base, the adjuster is screwed into the hole in the base and is used to extend into the adjustment area and push the stop piston.

[0007] According to some embodiments, at least one adjuster is present in multiples, stacked according to the stroke required to push the stop piston, and the adjusters are screwed into the holes in the base portion and extend into the adjustment area to be used to push the stop piston.

[0008] According to some embodiments, the base portion comprises a plurality of storage holes, each having a female thread corresponding to the male thread portion of each adjustment tool.

[0009] According to some embodiments, the base portion is removably assembled within the body portion and positioned at a certain distance from the bottom opening, and the bottom periphery of the container body defining the bottom opening and the base portion define a recessed area.

[0010] According to some embodiments, the base portion is detachably assembled to the bottom of the container body.

[0011] According to some embodiments, the base portion has a flange on its outward-facing bottom to define a recessed area.

[0012] According to some embodiments, in each of the adjusters, the height of the male screw portion accounts for one-third of the height of each adjuster.

[0013] According to some embodiments, each of the adjusters has a frustoconical hole that communicates with the lower opening.

[0014] According to some embodiments, the container body is made of glass or plastic.

[0015] According to some embodiments, the number of storage holes is four. [Effects of the Invention]

[0016] The airless container of the above-described embodiment of the present invention allows for adjustment of the space for liquids, pastes, or other contents contained within the container body by rotating an adjuster to adjust the stopping position of the stop piston on the body, thereby effectively expelling air from the container body. This reduces the effects of oxygen, moisture, and carbon dioxide in the air, helping to maintain the quality of the contents during storage and extending the shelf life. As a result, the airless container of the above-described embodiment of the present invention not only reduces the demand for desiccants and antioxidants when storing food and substances, but also reduces the generation of plastic waste due to the reusability of the airless container, thus having a positive impact on environmental protection. [Brief explanation of the drawing]

[0017] [Figure 1] This is a schematic three-dimensional view of an airless container according to the first embodiment. [Figure 2] Figure 1 is a schematic three-dimensional view of the airless container from a different perspective. [Figure 3] Figure 1 is a cross-sectional view showing the usage state of the airless container. [Figure 4] This is a schematic three-dimensional view of an airless container according to the second embodiment. [Figure 5] Figure 4 is a schematic three-dimensional view of the airless container from a different perspective. [Figure 6] It is a cross-sectional view of the airless container of FIG. 4. [Figure 7] It is a cross-sectional view showing the usage state of the airless container of FIG. 4. [Figure 8] It is a three-dimensional schematic view of the adjuster according to some embodiments. [Figure 9] It is a three-dimensional schematic view of the airless container according to the third embodiment. [Figure 10] It is a cross-sectional view showing the usage state of the airless container of FIG. 9. [Figure 11] It is a three-dimensional schematic view of the airless container according to the fourth embodiment. [Figure 12] It is a cross-sectional view showing the usage state of the airless container of FIG. 11.

Mode for Carrying Out the Invention

[0018] In order to fully understand the object, features, and effects of the present invention, the present invention will be described in detail below in combination with the drawings attached to specific examples.

[0019] As used herein, the terms "one" or "a" are used to describe units, members, structures, devices, modules, systems, parts, or regions, etc. This is merely for convenience and to give a general meaning to the scope of the present invention. This description should be read as including one or at least one, and the singular includes the plural unless it is clear that it means otherwise.

[0020] As used herein, the terms "comprising", "including", "having", or any other variant forms thereof are not necessarily limited to only those components, and can also include components not explicitly listed for such units, members, structures, devices, modules, systems, parts, or regions, or other specific components.

[0021] In this specification, spatial terms such as “above,” “on top of,” “below,” and “below” are used to facilitate the description of the relationship between one element or feature and another (or more) element or feature. These spatial terms may be intended to include other different orientations in addition to the orientation of each element or feature depicted in the drawings. These elements or features may be oriented in other ways (rotated by 90 degrees or in other orientations), in which case the spatial terms used herein shall be interpreted accordingly.

[0022] In this specification, terms relating to these spaces include whether or not another (one or more) element or feature is arranged between these elements or feature. For example, where it is stated in the description that a first member is formed on or above a second member, embodiments may include those in which direct contact is formed between the first member and the second member, and embodiments may also include those in which the first member and the second member are not in direct contact, by forming an additional member between them.

[0023] (First embodiment) Referring to Figures 1 to 3, Figure 1 is a schematic three-dimensional view of an airless container according to the first embodiment, Figure 2 is a schematic three-dimensional view of the airless container of Figure 1 from a different viewpoint, and Figure 3 is a cross-sectional view showing the airless container of Figure 1 in use.

[0024] The airless container 1 can be used to store liquids, pastes, or other contents, and by adjusting the liquid level or the top surface of the contents to be as close as possible to the top of the container, the amount of air inside the container after it is closed can be reduced as much as possible.

[0025] The airless container 1 includes a container body 100, a stop piston 200, a lid 300, a base portion 400, and at least one adjuster 500.

[0026] The container body 100 comprises a body portion 110 having a container mouth portion 110A and a bottom opening 110B. The body portion 110 may be tubular in shape with openings at both ends as shown in the figure, but is not limited to this, and the body portion 110 may form a neck portion that gradually narrows in diameter near the container mouth portion 110A. The container body 100 may be made of glass or plastic, or of other types of materials.

[0027] The stop piston 200 is movably mounted within the container body 100, dividing the internal space of the container body 100 into a storage area R1 and an adjustment area R2, which are not connected. The storage area R1 is located above the adjustment area R2, i.e., the storage area R1 is located on the upper side of the body 110 with the container mouth 110A, and the adjustment area R2 is located near the lower side of the body 110 with the bottom opening 110B. The stop piston 200 functions as a support surface, allowing the storage area R1 to be used for storing liquids, pastes, or other contents. The stop piston 200 is in close contact with the inner wall surface of the container body 100, preventing air and liquid from passing between the stop piston 200 and the container body 100. The stop piston 200 is movable relative to the container body 100 under sufficient pushing force (overcoming the frictional force between the stop piston 200 and the inner wall of the container body 100), and is fixed when the pushing force is removed.

[0028] The lid 300 is fitted over the body 110 and is used to close the container opening 110A, thereby forming a sealed space in the storage area R1 and preventing outside air or substances from entering the storage area R1 from the container opening 110A. The connection between the lid 300 and the body 110 may be a screw structure, a tightening structure, a snap-fit ​​structure, etc., allowing the user to open and close it as needed.

[0029] The base portion 400 is provided on the container body 100, located on one side of the adjustment region R2, and includes a hole 410 having a female thread 411, the hole 410 communicating with the adjustment region R2. In this embodiment, the base portion 400 is detachably assembled to the bottom of the container body 100, and the connection between the base portion 400 and the container body 100 can be a screw structure, a tightening structure, a snap-fit ​​structure, etc., and the user can operate it to attach and detach as needed. The above-mentioned connection structure between the container body 100 and the base portion 400 can be arranged on the inner wall or outer wall of the container body 100.

[0030] The adjuster 500 comprises a frustoconical portion 530 and a male threaded portion 520. The adjuster 500 has a top base portion 510 at its top and a bottom opening portion 500A at its bottom, with the area of ​​the top base portion 510 being smaller than the opening area of ​​the bottom opening portion 500A. The outer surface of the adjuster 500 is provided with a male threaded portion 520 corresponding to the female thread 411 of the hole portion 410 of the base portion 400. The adjuster 500 is screwed into the hole portion 410 of the base portion 400 and extends into the adjustment region R2 to be used to push the stop piston 200. The top base portion 510 is flat and is used to contact the bottom of the stop piston 200 and apply pushing force.

[0031] As shown in Figure 3, when using the airless container, the adjuster 500 can be turned by the user and rotated within the hole 410, and the adjuster 500 can be screwed in or unscrewed due to its screw structure. If the user needs to adjust the position of the stop piston 200 so that the liquid level of the contents being stored is closer to the container opening 110A, the adjuster 500 is screwed into the hole 410 and protrudes into the adjustment area R2, contacting the bottom of the stop piston 200, until the stop piston 200 reaches the desired position.

[0032] In this embodiment, the hole 410 is located in the center of the base 400, and the adjuster 500 is positioned through the hole 410 to the center corresponding to the stop piston 200, thereby distributing the force acting on the stop piston 200 to the center.

[0033] In this embodiment, the height of the adjuster 500 is designed based on the required stroke length of the stop piston 200. The adjuster 500 can be housed in the hole 410 when not in use to prevent loss, and of course, the adjuster 500 can also be separated and stored elsewhere.

[0034] For example, in the adjustment tool 500, the height of the male threaded portion 520 accounts for one-third of the height of each adjustment tool 500, and the height of the frustoconical portion 530 accounts for two-thirds of the height of each adjustment tool 500. In this example, the outer diameter of the portion of the male threaded portion 520 of the adjustment tool 500 is uniform. Due to the configuration of the threaded portion, the user can fine-tune the position of the stop piston 200 by rotating the adjustment tool 500 to fine-tune the height extending into the adjustment area R2 of the adjustment tool 500.

[0035] (Second embodiment) Referring to Figures 4 to 7, Figure 4 is a schematic three-dimensional view of an airless container according to the second embodiment, Figure 5 is a schematic three-dimensional view of the airless container of Figure 4 from a different viewpoint, Figure 6 is a cross-sectional view of the airless container of Figure 4, and Figure 7 is a cross-sectional view showing the airless container of Figure 4 in use.

[0036] In this embodiment, there may be multiple adjusters 500, and multiple adjusters 500 are stacked according to the required stroke for pushing the stop piston 200 (Figure 7), screwed into the hole 410 of the base portion 400, and extending into the adjustment region R2 to push the stop piston 200. That is, in the airless container 1' of this embodiment, if the height of the container body 100 is designed to be relatively high and the stop piston 200 needs to reach a position close to the container mouth 110A of the container body 100, it is necessary to stack more adjusters 500 to form a longer assembly. The adjusters 500 have a frustoconical shape, with a narrow upper part and a wide lower part, so that stable vertical stacking can be formed.

[0037] It should be understood that in some usage conditions, it may not be necessary to use all of the adjusters 500 depending on the volume of the contents being stored. When removing or taking out the stacked adjusters 500, the adjusters 500 can be quickly removed by first separating the base part 400 from the container body 100.

[0038] In this embodiment, the base portion 400 is provided with four storage holes 420, and each storage hole 420 has a female thread 421 corresponding to the male thread portion 520 of each adjuster 500. As shown in Figure 6, when not in use or in a certain usage state, the adjuster 500 can be mounted in the hole portion 410 and / or storage hole 420.

[0039] Although the figure shows four storage holes 420, the number is not limited to this, and may be more or less. In Figure 5, one adjustment device 500 is attached to the hole 410 and each storage hole 420, but the number is not limited to this, and one or more adjustment devices 500 may be attached as needed when not in use.

[0040] Referring together to Figures 7 and 8, Figure 8 is a schematic three-dimensional view of an adjustment device according to several embodiments.

[0041] As shown in the figure, the adjuster 500 has a frustoconical hole 540 that communicates with the lower opening 500A, and the taper of the frustoconical hole 540 corresponds to the taper of the frustoconical portion 530, making it easy to stack multiple adjusters 500 vertically (Figure 7). When multiple adjusters 500 are stacked on top of each other, the top base portion 510 of the lower adjuster 500 passes through the lower opening 500A of the upper adjuster 500, and the frustoconical portion 530 of the lower adjuster 500 is partially or completely accommodated in the frustoconical hole 540 of the lower adjuster 500.

[0042] (Third embodiment) Referring to Figures 9 and 10, Figure 9 is a schematic three-dimensional view of an airless container according to the third embodiment, and Figure 10 is a cross-sectional view showing the airless container of Figure 9 in use.

[0043] As shown in the figure, the base portion 400 has a flange 430 on its outward-facing bottom, so that a recessed area R3 is formed at the bottom of the airless container 1''. Depending on the adjustment of the stop piston 200 position, the adjuster 500 may protrude from the base portion 400 in some usage scenarios. In this embodiment, the airless container 1'' is supported on a table or plane via the flange 430, and the bottom surface of the base portion 400 with the hole 410 is a certain distance D (Figure 10) away from the table or plane, so that the adjuster 500 protruding from the bottom surface of the base portion 400 does not affect the vertical orientation of the airless container.

[0044] For example, the distance D may be one-third or more of the height of the adjuster 500. In this embodiment, referring to Figure 10, if the airless container 1" is equipped with multiple adjusters 500, the adjusters 500 that are not used can be stored in the recessed area R3, and even if the adjusters 500 protrude from the bottom surface of the base portion 400, they will not protrude from the bottom opening 110B and will not affect the vertical orientation of the airless container 1".

[0045] As another example, distance D may be substantially equal to the height of the adjuster 500, and the height of the adjuster 500 may be equal to the total length of the movable stroke of the stop piston 200 within the container body 100. In this embodiment (not shown), the airless container can be equipped with only one adjuster 500, and since the height of the adjuster 500 is sufficiently high, the stop piston 200 can be controlled to stop at any position during its movable stroke within the body. Therefore, there is no need to stack adjusters 500, and there is no need to go through the process of separating the base portion 400 from the container body 100 to remove the adjuster 500.

[0046] (Fourth embodiment) Referring together to Figures 11 and 12, Figure 11 is a schematic three-dimensional view of the airless container according to the fourth embodiment, and Figure 12 is a cross-sectional view showing the airless container of Figure 11 in use.

[0047] In this embodiment, the base portion 400 is detachably assembled to the body portion 110 and is located a certain distance D' (Figure 12) away from the bottom opening 110B, thereby defining a recessed area R3' between the bottom periphery of the container body 100 defining the bottom opening 110B and the base portion 400. The base portion 400 is assembled inside the container body 100 via the bottom opening 110B, and the connection between the base portion 400 and the container body 100 may be a screw structure, a tightening structure, etc., allowing the user to attach and detach it as needed.

[0048] For example, the distance D' may be one-third or more of the height of the adjuster 500. In this embodiment, referring to Figure 12, if the airless container 1''' is equipped with multiple adjusters 500, the adjusters 500 that are not used can be stored in the recessed area R3', and even if the adjusters 500 protrude from the bottom surface of the base portion 400, they will not protrude from the bottom opening 110B and will not affect the vertical orientation of the airless container 1'''.

[0049] As another example, distance D' may be substantially equal to the height of the adjuster 500, and the height of the adjuster 500 may be equal to the total length of the movable stroke of the stop piston 200 within the body 110. In this embodiment (not shown), the airless container can be equipped with only one adjuster 500, and since the height of the adjuster 500 is sufficiently high, the stop piston 200 can be controlled to stop at any position during its movable stroke within the body. Therefore, there is no need to stack adjusters 500, and there is no need to go through the process of separating the base 400 from the container body 100 to remove the adjuster 500.

[0050] As shown in the figure, the airless container 1''' of this embodiment is supported on a table or plane by the bottom edge of the container body 100, and the bottom surface of the base portion 400 having the hole portion 410 is at a certain distance from the table or plane, so that the adjuster 500 which may protrude from the bottom surface of the base portion 400 can be accommodated in the recessed area R3', and thus does not affect the vertical orientation of the airless container 1'''.

[0051] The airless container of the above-described embodiment of the present invention allows for adjustment of the space for liquids, pastes, or other contents contained within the container body by rotating an adjuster to adjust the stopping position of the stop piston on the body, thereby effectively expelling air from the container body. This reduces the effects of oxygen, moisture, and carbon dioxide in the air, helping to maintain the quality of the contents during storage and extend the shelf life, as well as preventing changes in the contents' composition due to air removal. As a result, the airless container of the above-described embodiment of the present invention not only reduces the demand for desiccants and antioxidants when storing food and substances, but also reduces the generation of plastic waste due to the reusability of the airless container, thus having a positive impact on environmental protection.

[0052] Although the present invention has disclosed best embodiments above, as those skilled in the art will understand, these embodiments are used solely for illustrative purposes and should not be understood as limiting the scope of the invention. It should be noted that all modifications and substitutions having equivalent effects to those in these embodiments are included within the scope of the invention. Therefore, the scope of protection of the present invention is as defined in the claims. [Explanation of Symbols]

[0053] 1,1',1”,1”' Airless container 100 Container body 110 Torso 110A Container opening 110B Bottom opening 200 Stop Piston 300 Lid 400 Base section 410 Hole 411 Female thread 420 storage holes 421 Female thread 430 flange 500 Adjustment tool 500A Lower opening 510 Top platform 520 Male thread section 530 Truncated cone section 540 frustoconical holes D, D' distance R1 storage area R2 adjustment area R3, R3' recessed area

Claims

1. A container body comprising a body having a container opening and a bottom opening, A stop piston is provided movably within the container body, and the internal space of the container body is divided into a storage area and an adjustment area, which are not connected. A lid is provided at the opening of the container so as to form a sealed space in the storage area, A base portion provided at the bottom of the container body, located on one side of the adjustment region, having an internal thread, and having a hole communicating with the adjustment region, It comprises a frustoconical portion and a male threaded portion, with a top base portion at the top and a bottom opening portion at the bottom, and the male threaded portion has at least one adjuster corresponding to the female thread of the hole portion of the base portion. An airless container including, The adjusting tool is screwed into the hole in the base portion and extends into the adjustment region to be used to push the stop piston. Airless container.

2. The airless container according to claim 1, wherein at least one adjuster is present in multiples, and the adjusters are selected and stacked according to the stroke to which the stop piston needs to be pushed, and are screwed into the hole in the base portion and used to extend into the adjustment area and push the stop piston.

3. The airless container according to claim 2, wherein the base portion is provided with a plurality of storage holes, each having a female thread corresponding to the male thread portion of each of the adjusters.

4. The airless container according to claim 3, wherein the base portion is removably assembled within the body portion and positioned at a certain distance from the bottom opening, and the bottom periphery of the container body defining the bottom opening and the base portion define a recessed area.

5. The airless container according to claim 3, wherein the base portion is detachably assembled to the bottom of the container body.

6. The airless container according to claim 5, wherein the base portion has a flange on its outward-facing bottom to form a recessed area.

7. The airless container according to any one of claims 1 to 6, wherein in each of the adjustment tools, the height of the male screw portion is one-third of the height of each of the adjustment tools.

8. The airless container according to claim 7, wherein each of the adjustment tools has a frustoconical hole that communicates with the lower opening.

9. The airless container according to claim 8, wherein the container body is made of glass or plastic.

10. The airless container according to claim 3, wherein the number of storage holes is four.

Images