JP2021084647A - Container body, composite container body, and airless pump mounted to the container body - Google Patents

Abstract

To provide a container body capable of reducing the pouring-out residual amount of a content and easily understanding the residual amount during use.SOLUTION: A container body 1 stores a fluid content in a body including an outlet 5, a cylindrical trunk 10, and a bottom, and an airless pump 20 having a suction cylindrical part 23 projected into the cylindrical trunk 10 is detachably attached to the outlet 5 so as to allow pouring-out of the content. The cylindrical trunk 10 includes a bellows trunk elongatable in an axial direction and contractable in the axial direction as the content is poured out by the airless pump 20. The bottom is formed so as to bring a tip of the suction cylindrical part 23 into contact with the bottom in a state where the bellows trunk is contracted most.SELECTED DRAWING: Figure 2

Description

The present invention relates to a container body and a composite container body having a bellows-shaped body for accommodating the contents, and an airless pump detachably attached to the container body.

Conventionally, pouch packs and the like are known as containers for containing liquefied fluids (contents having various viscosities) such as shampoos, liquid detergents, cosmetics, various chemicals, and paints. Since the pouch pack can be manufactured at low cost, it is convenient as a disposable container and is used as a refill for the main body container. That is, after the contents of the main body container such as a plastic bottle are used up, the user purchases a pouch pack containing the contents for refilling and performs the refilling work of the contents.

The above-mentioned pouch pack has flexibility, and as the contents are poured out, the pouch side sheets come close to each other, and the bottom can also be deformed and withered. Therefore, when the contents are taken out, it is airless. It is possible to use a pump with a function. Therefore, it is possible to use such a pouch pack not for refilling but for refilling with a pump. In this case, it is necessary to attach a spout (also referred to as a spout) for attaching and detaching the pump to the pouch pack in advance, and the pouch pack shrinks flat as the contents are poured out. Therefore, a pouch pack holder for stably holding such a pouch pack is required.

As the pouch pack holder, for example, a holder having a structure as disclosed in Patent Documents 1 and 2 is known. Since these holders are self-supporting with the pouch pack sandwiched between them, the contents can be poured out to maintain the self-supporting state even if the pouch pack shrinks, and the pouch pack can be poured out without falling over. Is possible.

JP-A-2006-306489 JP-A-2018-87022

A conventional pouch pack has a triakis tetrahed structure formed by laminating a sheet member having a sealant layer on the inner layer side and a protective layer on the outer layer side and welding the periphery, or a self-three-dimensional structure in which the bottom is welded. The structure is such that a spout (outlet) is welded to this pouch pack and attached to the holder. The user can pour out the contents of the replaced pouch pack by attaching the pump to the spout and pressing the pump.

However, as the contents are poured out, the sheet members constituting the side surface of the pouch pack come into close contact with each other. This is because by using an airless pump, even if the contents are taken out, the outside air does not enter the container, so that the distance between the sides of the pouch pack itself is narrowed. Then, when the sheet members constituting the side surfaces are narrowed to each other and adhere to each other, they also adhere to the suction cylinder portion and the end opening of the pump, and the contents cannot be poured out in the middle, so that the suction cylinder portion reaches. There is a problem that the contents remain in the gaps around the bottom and the cylinder. In addition, as the contents are poured out, the pouch pack gradually narrows from the tubular shape to a flat shape, but the length remains the same. In order to suck up all the contents, the tip of the suction cylinder of the pump reaches the bottom of the pouch. Need to be done. Further, even if the pouch pack is held so as to be exposed by the holder, it is not possible to clearly grasp how much it has been used.

The present invention has been made by paying attention to the above-mentioned problems, and is a container body capable of pouring out the contents, and it is possible to reduce the residual amount of pouring out of the contents and at the time of use. It is an object of the present invention to provide a container body whose residual amount can be easily grasped, and a composite container body provided with a tubular holder for holding such a container body. Another object of the present invention is to provide an airless pump suitable for the above-mentioned container body and composite container body.

In order to achieve the above object, the present invention is a container body in which a fluid content is housed in a main body having a spout, a tubular body and a bottom, and the spout has a cylinder. An airless pump having a suction cylinder protruding into the body is detachably attached so that the contents can be poured out. The tubular body can be expanded and contracted in the axial direction, and the contents can be expanded and contracted by the airless pump. It has a bellows-shaped body that can contract axially as an object is poured out, and the bottom is formed so that the tip of the suction tube is in contact with the bellows-shaped body in the most contracted state. It is characterized by.
Further, the present invention is characterized by being a composite container body having the above-mentioned container body and a tubular holder provided with a holding portion for holding the tubular body portion of the container body so as to expand and contract in the vertical direction. And.

Since the above-mentioned container body is formed in a shape in which the tubular body is provided with a bellows-shaped body that can be expanded and contracted in the axial direction, when the contents are poured out by attaching an airless pump, the bellows part is simply It only contracts in the axial direction, and the bottom of the main body is formed so that the tip of the suction cylinder of the airless pump comes into contact with the bellows-shaped body in the most contracted state. Can be shortened, the body portion of the container does not come into close contact with the outer peripheral region of the suction cylinder portion, and the residual amount of the contents can be reduced. In addition, when the bellows-shaped body is sufficiently contracted, the tip opening of the suction cylinder of the airless pump has a gap in the bottom surface of the container body, and in that state, the contents are brought into contact while maintaining the suction function. It can be dispensed without remaining.

Further, according to the composite container body used in combination with the tubular holder provided with the holding portion for holding the container body so as to expand and contract in the vertical direction, the container body cylinder is used as the contents are poured out. The shape body part contracts upward in the vertical direction, and the tip opening of the suction cylinder part of the airless pump surely contacts the bottom part of the container body, and it is possible to dispense without leaving the contents. It becomes. Further, when the container body is held by such a holder, the contracted state of the tubular body portion can be visually observed, so that the amount used can be easily grasped by the contracted length.

Furthermore, an object of the present invention is to provide an airless pump suitable for the above-mentioned container body and a composite container body, and the airless pump is provided in a main body provided with a spout, a bellows-shaped body and a bottom. It is configured to be detachably attached to the spout of the container body in which the fluid contents are housed to eject the contents, and has a suction cylinder portion protruding into the bellows-shaped body portion. The suction cylinder portion is characterized in that the bellows-shaped body portion is formed to have a length in which the tip is in contact with the most contracted state.

The airless pump according to the present invention has a configuration suitable for a container body having a bellows-shaped body as described above, and when attached to such a container, the suction cylinder portion becomes a bellows-shaped body. Since it is formed so that the tip is in contact with the most contracted state, it will not be unnecessarily lengthened and the contents can be dispensed until the bellows-shaped body is in the most contracted state. It can be dispensed without remaining.

According to the present invention, it is possible to reduce the residual amount of the contents to be poured out, and the residual amount can be easily grasped at the time of use, and a cylinder for holding such a container body. A composite container with a shape holder can be obtained. Further, according to the present invention, it is possible to obtain an airless pump capable of reducing the residual amount of injection of the container body.

It is a figure which shows the embodiment of the container body which concerns on this invention, and is the perspective view which shows the state attached to the holder (showing a composite container body). FIG. 3 is a cross-sectional view of the container body (composite container body) shown in FIG. The side view which shows the structure of the container body. FIG. 3 is a perspective view showing a state in which the contents are poured out from the state shown in FIG. FIG. 4 is a cross-sectional view of the container body (composite container body) shown in FIG. It is a figure which shows the modification of the airless pump, and is the sectional view which shows the state which the contents of the container body were poured out. The perspective view which shows the 2nd Embodiment of a holder. FIG. 7 is a perspective view showing a state in which the opening / closing door of the holder shown in FIG. 7 is closed.

Hereinafter, an embodiment of a container body according to the present invention and a composite container body including a holder for holding the container body will be described.
1 to 5 show a first embodiment of a composite container body including a container body and a holder for holding the container body, and FIG. 1 shows a container body (composite container) showing a state of being attached to the holder body. A perspective view of the body), FIG. 2 is a cross-sectional view of the container body (composite container body) shown in FIG. 1, FIG. 3 is a side view showing the configuration of the container body, and FIG. Is a perspective view showing the state in which is poured out, and FIG. 5 is a cross-sectional view of the container body (composite container body) shown in FIG.

FIG. 1 shows a container body 1 for accommodating liquefied fluids (collectively referred to as contents) such as shampoo, liquid detergent, cosmetics, various chemicals, paints, etc. A composite container body having a tubular holder (hereinafter, also referred to as a holder) 50 to be held in the vertical direction is shown (the composite container body is composed of the container body 1 and the holder 50).

The container body 1 is integrally formed in a substantially cylindrical shape by, for example, blow molding a polyolefin such as polyethylene or polypropylene, polystyrene, PET or other plastic material such as polyester, and the main body thereof has a spout 5 and a cylinder. The shape body portion 10 and the bottom portion 15 are provided.

The spout 5 is between the cylindrical portion 5a formed in the central portion of the upper surface portion 7 of the container body 1, the mouth portion 5b formed above the cylindrical portion 5a, and the cylindrical portion 5a and the mouth portion 5b. The pump 20 described later is detachably attached to the spout 5, and the contents housed in the tubular body 10 are attached to the spout 5. It is sucked through the pump 20 to be operated. A cap (not shown) is separately attached to the spout 5, and the user removes the cap and attaches the pump 20 at the time of use.

As the above-mentioned pump 20, in the present invention, an airless flow type pump (an airless type pump that does not introduce air into the inside at the time of pouring, and hereinafter also referred to as an airless pump 20) is used. Since the basic structure of the airless pump 20 is generally known, a detailed description of the structure will be omitted, but the pressing portion 21 that is pressed against the urging force and the mouth portion of the spout 5 A fixing portion 22 fixed to 5b and a suction cylinder portion 23 extending into the tubular body portion 10 of the container body 1 via the flow path of the injection port 5 of the container body are provided, and a pressing portion is provided. By pressing 21 against the urging force, the contents in the container are discharged from the discharge portion 25 formed in the pressing portion 21.

The airless pump 20 of the present invention has the above-mentioned basic structure, and has a suction cylinder portion 23 as described later in relation to the tubular body portion (bellows-shaped body portion) of the container body 1. It is characterized by its length and tip shape. The airless pump 20 shown in the figure shows a type (pressing type) that is pressed when the contents are dispensed, but is not limited to the pressing type, and air is inside the container body at the time of pouring. If it is an airless type pump that does not introduce the above, an airless pump in which the pressing portion is a trigger type may be used.

A female screw portion 22a is formed on the inner peripheral surface of the fixing portion 22, and the pump 20 and the mouth portion 5b are fixed to the male screw portion 5d formed on the outer peripheral surface of the mouth portion 5b. It is performed by screwing the female screw portion 22a. In this case, the fixing method of both may be performed by press fitting or the like in addition to screwing.

When the pump 20 is attached to the mouth portion 5b, the lower end of the fixing portion 22 substantially coincides with the lower end of the mouth portion 5b, and the small diameter portion 5c is not covered by the fixing portion. The small diameter portion 5c constitutes a locking portion that is locked to the holding portion of the holder 50, and the container body 1 is held in a state of being suspended perpendicularly to the holder 50.

The tubular body portion 10 between the spout 5 and the bottom portion 15 is formed in a bellows shape so as to be expandable and contractable in the axial direction (vertical direction), and has a bellows-shaped body portion. There is. Such a tubular body 10 is in a state in which a large number of ring-shaped folds 10a are continuously formed along the axial direction by blow molding the above-mentioned plastic material using, for example, a bellows-shaped mold. Since it can be integrally formed with a single material and can be blow-molded with a single material, an environment-friendly container body can be obtained. In the container body 1 of the present embodiment, the bottom portion 15 is prepared as a separate body from the main body, the bottom portion of the main body (cylindrical body portion 10) is opened, the contents are filled from the bottom portion, and then the container body 1 is separated. It may be configured to be sealed using the bottom of the body.

The ring-shaped folds 10a formed as described above can expand and contract along the axial direction. In this case, the folds of the bellows provided on the tubular body are easily folded tightly when contracted by a known method, for example, by appropriately setting the lengths of the upper surface and the lower surface of the folds. It is desirable to have a fold shape that makes it easy to maintain the folded state.

When the tubular body portion 10 having the above configuration is filled with the contents, each fold 10a is in a state of being extended in the axial direction as shown in FIGS. 1 to 3. Further, in the airless pump 20 mounted on the spout 5, the length of the suction cylinder portion 23 is in a contracted state (the most contracted state) in which the folds 10a of the bellows are in close contact with each other, and the bottom portion 15 of the tubular body portion is pressed. It is formed to have a length that pushes it out (the length at which the tip opening 23a of the suction cylinder 23 is in contact with the inner surface of the bottom). Therefore, as the contents are poured out by the airless pump 20, each fold 10a shrinks so as to approach each other, and when all the contents are finally poured out, the folds 10a are in a state of being in close contact with each other in the axial direction, and the suction cylinder. The tip opening 23a of the portion 23 is in a state in which the central portion of the bottom portion 15 is bulged, that is, the tip opening 23a is in contact with the inner surface of the bottom portion 15 (see FIG. 5).

The bottom portion 15 of the container body 1 described above preferably has a shape that bulges in the axial direction in a state where the tubular body portion 10 is contracted, but is not particularly limited, and the tip of the suction cylinder portion 23 is not particularly limited. When the opening 23a comes into contact with the bottom 15, the contact portion becomes the lowermost recess of the bottom, and if the contents are collected in that portion, the bottom can be flat, recessed, or protruding at the initial stage. good.

Since the contents in the tubular body 10 fall toward the bottom due to gravity, the bottom 15 is bulged in the axial direction as in the present embodiment (as shown in FIGS. 3 and 5). , The central region forms the most recessed bulging portion 15a), so that the contents are likely to accumulate in the bulging portion at the bottom, which is preferable. That is, since the contents finally accumulate in the pool space S formed by the bulging portion 15a in contact with the tip opening 23a of the suction cylinder portion 23 of the airless pump 20, the suction cylinder portion 23 of the pump 20 Therefore, the contents of the portion can be poured out, and the remaining amount of the contents can be reduced.

The tip opening 23a described above may have a cut end formed in a direction orthogonal to the axial length direction of the suction cylinder portion 23, but the tip opening is between the bottom and the bottom when it comes into contact with the bottom. It is preferable that the shape has a gap, for example, the tip opening 23b shown in FIG. 6 is formed in an uneven shape. With such a shape, even if it comes into contact with the bottom portion 15, the opening portion is not blocked by the bottom portion, and the contents can be sucked up without leaving any contents.

In this way, the bottom portion 15 (bulging portion 15a) is formed so that the portion in contact with the tip of the suction cylinder portion 23 of the pump 20 is in the most recessed state while the tubular body portion 10 is contracted. Furthermore, by forming a shape having a gap between the bottom and the bottom when it comes into contact with the bottom, it is possible to most efficiently pour out the contents without leaving the contents.
In this case, the tip opening may have a shape having a gap between the tip opening and the bottom surface of the contracted bottom, and the shape is not particularly limited. For example, by forming a peripheral uneven portion or an inclined portion (inclined shape) that creates a gap between the bottom portion and the bottom portion and allowing the contents to be sucked up from the gap between the bottom portion, the contents remain. The amount can be significantly reduced.

As shown in FIG. 1, the holder 50 for holding the container body 1 has a housing 50A formed in a substantially cylindrical shape, and an opening 51a into which the container body 1 can be inserted and removed is provided on the circumferential side surface 51 thereof. It is formed. The opening 51a also has a function of visually recognizing the tubular body portion 10 when the container body 1 is installed in the holder 50 and is used, and the contents depending on the contracted state (height in the contracted state) of the container body 1. It is possible to grasp the injection amount (residual amount of contents) of the thing.

Further, the housing 50A of the holder 50 is formed with a holding portion 55 that holds the tubular body portion 10 of the container body 1 so as to expand and contract in the vertical direction. The holding portion 55 is provided with a U-shaped groove 55a extending toward the center so that the small diameter portion 5c of the spout 5 of the container body 1 can be inserted from the opening side.

As a result, when the container body 1 containing the contents is set in the holder 50, the container body 1 is in a state where the small diameter portion 5c is locked by the U-shaped groove 55a and suspended in a vertical state, and the pump 20 When the bottom portion 15 is raised and the injection is completely completed, the bottom portion 15 is in a contracted state as shown in FIGS. 4 and 5. In this case, since the ascending position of the container body 1 can be grasped according to the injection amount, it is possible to grasp the remaining amount of the contents, and the tip opening of the suction cylinder portion 23 of the airless pump 20 described above. Due to the suitable position and shape of the portions 23a (23b) and the bulging shape of the bottom portion 15 described above, the contents can be poured out without waste.

Further, the above-described configuration of the container body 1 eliminates the need to adjust the length, cross-sectional shape, etc. of the holder 50 used as a composite container to a shape that holds a conventional pouch. That is, in the case of a pouch having different vertical and horizontal widths depending on the cross-sectional shape at the time of filling, it is necessary to match the cross-sectional shape of the holder to be used with the pouch, and there is a problem that it cannot be slimmed into a tubular shape. In the configuration for holding the body 1 (composite container body), the cross-sectional shape of the container body 1 does not change from the time of filling to the time of use, so that the shape of the holder 50 can be formed into a tubular shape. It can be slimmed down. Further, since the container body 1 can be attached to and detached from the holder 50 relatively easily, the used container body 1 can be easily replaced.

Further, in the above-mentioned container body, since the bellows-shaped body gradually rises as the contents are poured out, it is possible to easily grasp the residual amount of the contents at the time of use, and the airless pump 20 is used. Since the contents are poured out, air does not enter the inside of the container 1 during use, and it is possible to prevent the contents from being oxidized.

7 and 8 are views showing a second embodiment of the holder, FIG. 7 is a perspective view, and FIG. 8 is a perspective view showing a state in which the opening / closing door of the holder shown in FIG. 7 is closed.
The holder that holds the container body 1 can be variously deformed.
As shown in these figures, the opening / closing door 57 is supported on the side surface of the housing 50A of the holder 50 so as to be openable / closable. good. That is, at the time of use, the cylindrical housing 50A is exposed, and the bellows-shaped container 1 is held without being exposed.

According to such a configuration, it is possible to improve the design of the holder. The shape, size, material, and overall structure of the holder are not particularly limited and can be variously deformed. However, a tubular holder shape corresponding to the shape of the tubular container body is available. It is suitable because it can be slimmed down, and a circular or polygonal shape is suitable as the cross-sectional shape of the tubular portion.
The holder 50 described above can be formed of, for example, plastic, metal, wood, or the like, and can also have a frame structure. Further, the opening for exposing the housing can be appropriately deformed. Further, since the container body 1 of the present invention shrinks inside the holder 50, it may come into contact with the holder, and it is desirable that the holder material has good slipperiness.

1 Container body 5 Injection port 10 Cylindrical body 15 Bottom 20 Pump (airless pump)
50 holder

Claims (10)

A container body in which fluid contents are housed in a main body having a spout, a tubular body, and a bottom.
An airless pump having a suction cylinder protruding into the tubular body is detachably attached to the spout, and the contents can be dispensed.
The tubular body comprises a bellows body that is axially telescopic and axially contractable as the contents are ejected by the airless pump.
The bottom portion is a container body formed so that the tip end of the suction cylinder portion is in contact with the bellows-shaped body portion in the most contracted state. The bottom portion is formed so that the bellows-shaped body portion is in the most contracted state and the portion in contact with the tip of the suction cylinder portion of the airless pump is in the most recessed state. The container body according to 1. A container body in which a fluid content is housed in a main body provided with an spout, a tubular body, and a bottom, and an airless pump is attached to the spout to eject the content.
The tubular body has a bellows-shaped body that can be expanded and contracted in the axial direction, and contracts in the axial direction as the contents are poured out.
The airless pump is characterized in that the bellows-shaped body portion of the tubular body portion is in the most contracted state and includes a suction cylinder portion having a length in contact with the bottom portion of the container body. The container body according to claim 3, wherein the tip opening of the suction cylinder portion has a shape having a gap with the bottom surface when it comes into contact with the bottom portion of the container body. The container body according to any one of claims 1 to 4, wherein the tubular body is made of a plastic material. A composite container body comprising a holding portion for holding the tubular body portion of the container body according to any one of claims 1 to 5 so as to expand and contract in the vertical direction. .. The composite container body according to claim 6, wherein the tubular holder is formed with an opening that makes it possible to visually recognize the expanded / contracted state of the tubular body portion. An airless pump that is detachably attached to the spout of a container body in which fluid contents are housed in a main body having a spout, a bellows-shaped body, and a bottom, and ejects the contents.
It has a suction cylinder portion that protrudes into the bellows-shaped body portion, and has a suction cylinder portion.
The suction cylinder portion is an airless pump characterized in that the bellows-shaped body portion is formed to have a length in contact with the tip in the most contracted state. The airless pump according to claim 8, wherein the tip opening of the suction cylinder portion has a shape having a gap with the bottom surface when it comes into contact with the bottom portion of the container body. The airless pump according to claim 9, wherein the tip opening of the suction cylinder portion has an end surface formed in an uneven shape or an inclined shape.

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