Valve mechanism for tube-type fluid container

a valve mechanism and fluid container technology, applied in the field of valve mechanisms, can solve the problems of deteriorating the quality of the fluid stored in the fluid storage portion, low durability, and high manufacturing cost of the valve mechanism using the spherical valve body and the spring, and achieve the effect of reliably closing the fluid

US20080041890A1Inactive Publication Date: 2008-02-21MASUDA MASATOSHI
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
Publication Date
2008-02-21
Estimated Expiration
Not applicable · inactive patent

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Abstract

A valve mechanism adapted for a fluid-discharging port of a tube-type fluid container includes: a valve seat portion having a valve seat surface with an opening for passing a fluid therethrough; a valve portion comprising a valve body having a shape corresponding to the valve seat surface with the opening, and a shaft connected to the valve body and extending downward from the valve body, and a valve support portion for elastically urging the valve body downward to close the opening. An annular convex portion is further formed between the valve seat surface and the valve body on the valve seat surface or the valve body for closing the opening with the valve body at the annular convex portion.
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Description

CROSS REFERENCE TO RELATED APPLICATIONS

[0001] This is a divisional application of U.S. patent application Ser. No. 10 / 619,205, filed Jul. 14, 2003, the disclosure of which is herein incorporated by reference in its entirety.BACKGROUND OF THE INVENTION

[0002] 1. Field of the Invention

[0003] The present invention relates to a valve mechanism, particularly to a valve mechanism which can be used for a tube-type fluid container. Further, the present invention relates to a tube-type fluid container storing a fluid inside it.

[0004] 2. Description of the Related Art

[0005] A valve mechanism as described in Japanese Patent Laid-open No. 2001-179139 has a spherical valve body and a spring for giving momentum to the valve body toward a valve seat has been used. Manufacturing costs of the valve mechanism using the spherical valve body and the spring, however, tend to be high.

[0006] A valve mechanism having a resinous valve seat, and a resinous valve body which moves between a closed positio...

Examples

embodiment 2

[0120] A construction of a tube-type fluid container according to another embodiment of the present invention is described below. FIG. 5 is an exploded longitudinal section of the tube-type fluid container according to the

[0121] In the above-mentioned tube-type container according to the Embodiment 1, the lid material 2 having a construction in which with the female screw portion 222 of the lid material screwing together with the male screw portion 14 in the container main unit, the discharge port 12 of the container main unit 1 is closed, is used. In this Embodiment 2, a lid material 4 having a fluid discharge port 241 at its end is used. The fluid container according to the Embodiment 2 has a construction in which a discharge port 12 of the container main unit 1 and the discharge port 241 of the lid material 4 are communicated with the female screw portion 242 of the fluid container screwing together with the male screw portion 14 of the container main unit 1.

embodiment 3

[0122] A construction of the tube-type fluid container according to the third aspect of the present invention is described below. FIG. 6 is an exploded longitudinal section of the tube-type fluid container according to the present invention.

[0123] In this tube-type fluid container according to the Embodiment 3, a lid material 5 comprising a base portion 51 possessing a fluid discharge port 53 at its center and an upper lid 52 which can hinge with the base portion 51 is used. This tube-type fluid container according to the Embodiment 3 has a construction in which a discharge port 12 of the container main unit 1 and the discharge port 54 of the lid material 5 are communicated with the female screw portion 53 of the fluid container screwing together with the male screw portion 14 of the container main unit 1. Additionally, in this tube-type fluid container according to the Embodiment 3, by causing the upper lid 52 to hinge with the base portion 51, it becomes possible to open / close the...

embodiment 4

[0195]FIG. 26 is a front view of the tube-type fluid container of the present invention. FIG. 27 is its longitudinal section.

[0196] This tube-type container is used as a container for beauty products for storing gels such as hair gels and cleansing gels or creams such as nourishing creams and cold creams used in the cosmetic field. Additionally, this tube-type container also can be used as a container for medicines, solvents or foods, etc.

[0197] 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.

[0198] This tube-type container possesses a container main unit 140, a lid material 110 which is placed at the top of the container main unit 140, and a valve mechanism 10.

[0199] The container main unit 140 possesses a discharge port 441 for discharging a fluid, which is formed at one end of the container main unit, a flange portion 150 (See FIG. 35 and FIG. 36) formed in the vicin...