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Double walled fluid-storing container

a container and double wall technology, applied in the field of fluid storage containers, can solve the problems of complex configuration and rising manufacturing cos

Inactive Publication Date: 2006-03-02
MASUDA MASATOSHI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

"The present invention provides a fluid-storing container that prevents its shape from changing when the amount of fluid inside it changes. The container includes an inner container for storing the fluid, an outer container for enclosing the inner container, and a joined member that connects the inner and outer containers. The joined member has a fluid-discharge opening and an annular step or slit that creates an air path for air to pass through. The outer opening portion of the outer container has at least one slit that passes air, and the inner and outer containers are engaged with each other to form the air path. The joined member may have a lid portion for closing the fluid-discharge opening. The invention solves the problem of the container's shape changing when the fluid amount changes."

Problems solved by technology

According to the fluid-storing container described in Japanese Patent Laid-open No. 2000-109103, because the outer container comprises the valve member, its configuration becomes complex.
According to the fluid-storing container described in Japanese Patent Laid-open No. 2004-192319, because the inner container and the outer container are connected with each other, manufacturing cost soars.

Method used

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  • Double walled fluid-storing container
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  • Double walled fluid-storing container

Examples

Experimental program
Comparison scheme
Effect test

first embodiment

[0048]FIG. 1 is a schematic view showing a fluid-storing container according to the present invention by taking it apart to pieces.

[0049] This fluid-storing container is used as a container for beauty products for storing gels such as hair gels and cleansing gels, creams such as nourishing creams and cold creams or liquids such as skin lotions used in the cosmetic field. Additionally, this fluid-storing container also can be used as a container for general medicines, solvents or foods, etc. In this specification, high-viscosity liquids, semifluids, gels that sol solidifies to a jelly, and creams and regular liquids are all referred to as fluids.

[0050] This fluid-storing container is a tubular fluid-storing container having a fluid discharge opening at one end and comprises an inner container 10, an outer container 20 enclosing the inner container 10, a joined member 30 joining the inner container 10 and the outer container 20, and a valve member 40 for opening / shutting off the disc...

second embodiment

[0079] According to the fluid-storing container according to the present invention, a joined portion 42 in the valve member 40 is supported by rib portions 34 in a joined member 30, and the mounted upright portion 43 in the valve member 40 is supported by the rib portions 64 in the inner container 60. Because of it, the valve member 40 is stably fixed, and thus it becomes possible to open / shut off the discharge opening of the valve member 40 more appropriately.

[0080] Additionally, the valve member 40 may be slidably supported between the rib portions 34 and the rib portions 64. In this case, the valve member 40 travels upward when the interior of the fluid-storing portion 11 is pressurized; the valve member 40 travels downward when pressurization to the interior of the fluid-storing portion 11 is removed. Because of this, a fluid having passed through the valve member 40 and flowed out to the vicinity of the discharge opening can be brought back in as the valve member 40 travels dow...

fourth embodiment

[0085]FIG. 16 is an enlarged sectional side view showing the vicinity of a discharge opening 33 in a fluid-storing container according to the present invention.

[0086] Although the fluid-storing container according to the first embodiment of the present invention comprises the inner container 10 and the outer container 20, the fluid-storing container according to the fourth embodiment of the present invention comprises an inner container 60′ according to the second embodiment in place of the inner container 10, and an outer container 70 in the fluid-storing container according to the third embodiment in place of the outer container 20.

[0087] According to the fluid-storing container according to the fourth embodiment of the present invention, a joined portion 42 in a valve member 40 is supported by rib potions 34 in a joined member 30′, and a mounted upright portion 43 in the valve member 40 is supported by rib portions 64. Additionally, with an inner joined portion 712 in the outer ...

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PUM

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Abstract

A fluid-storing container includes an inner container (10), an outer container (20) enclosing the inner container (10), a joined member (30) joining the inner container (10) and the outer container (20), and a valve member (40) for opening / shutting off a discharge opening from the exterior. The joined member (30) joins the inner container (10) and the outer container (20) in such a way that that an inner space (50) is formed between the inner container (10) and the outer container (20), and a flow path enabling air to pass through between the exterior and the inner space (50) is formed.

Description

BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention generally relates to a fluid-storing container for storing a fluid therein. [0003] 2. Description of the Related Art [0004] With regard to this type of fluid-storing container, a fluid-storing container described in Japanese Patent Laid-open No. 2000-1.09103 or No. 2004-182319 is in the public domain. [0005] The fluid-storing container described in Japanese Patent Laid-open No. 2000-109103 comprises an inner container for storing a fluid, and an outer container enclosing the inner container so that an air chamber is formed between the outer container and the inner container. This outer container comprises a valve member for preventing air inside the air chamber from flowing out to the exterior when a pressure is applied to the container. [0006] The fluid-storing container described in Japanese Patent Laid-open No. 2004-192319 comprises an inner container for storing a fluid, and an outer contai...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B65D35/56
CPCB65D83/0055
Inventor MASUDA, MASATOSHI
Owner MASUDA MASATOSHI