Refillable container

Patent metadata

Field	Value
Publication number	US-10518279-B2
Application number	US-201515322864-A
Country	US
Kind code	B2
Filing date	Jun 26, 2015
Priority date	Jun 30, 2014
Publication date	Dec 31, 2019
Grant date	Dec 31, 2019

Abstract

A refillable container including an outer container (3), a lid member (4), an inner container (5), and a pump (6). The outer container has an opening formed in an upper part thereof, and the lid member is configured to close the opening of the outer container. The inner container is made of paper, configured to store the liquid content therein, and replaceably accommodated in the outer container. The pump is configured to pump up the liquid content in the inner container stored in the outer container and to dispense the liquid content outside of the refillable container. When the opening of the outer container is closed by the lid member, a suction tube (15) of the pump, which is arranged below the lid member, is inserted from a suction port (8), which is formed in an upper surface of the inner container, into the inner container.

First claim

The invention claimed is:

1. A refillable container, comprising:
an outer container, which has an opening on an upper part thereof and is made of plastic;
a lid member, which is configured to close the opening of the outer container and is made of plastic;
an inner container, which is made of paper, configured to store a liquid content therein, and replaceably accommodated in the outer container when the liquid content is used up, the inner container having a suction port formed in an upper surface of the inner container; and
a pump, which is provided to the lid member and configured to pump up from the suction port the liquid content in the inner container accommodated in the outer container and to dispense the liquid content to an outside of the refillable container,
wherein the inner container is made of a paper material having a thermoplastic resin laminated on both surfaces of the inner container, includes four body panels, and has a body, which has an edge coupled to a vertical direction sealing panel so as to be formed into a square tubular shape,
wherein, in the upper surface of the inner container, a pair of upper-surface forming panels and a pair of side panels are continuously provided to upper edges of the four body panels,
wherein the pair of upper-surface forming panels face each other and overlap in the vertical direction,
wherein the pair of side panels are positioned between the pair of upper-surface forming panels to face each other and folded up outwardly from the pair of upper-surface forming panels along with overlapping of the pair of upper-surface forming panels,
wherein the pair of upper-surface forming panels have holes, which are formed at centers of the pair of upper-surface forming panels to form the suction port,
wherein one of the holes, which is formed in at least a lower upper-surface forming panel of the pair of upper-surface forming panels, is sealed by a film, which is tearable,
wherein a periphery of the lower upper-surface forming panel of the pair of upper-surface forming panels, an upper upper-surface forming panel of the pair of upper-surface forming panels, and the pair of side panels are bonded to each other to seal the inner container,
wherein a bottom surface of the inner container is formed into a reversed quadrangular pyramid shape,
wherein the pump comprises:
a tubular cylinder portion;
a dispense nozzle, which is provided to an upper part of the tubular cylinder portion and serves also as an operation portion for a piston that is slidably fitted into the tubular cylinder portion; and
a suction tube, which is provided to a lower part of the tubular cylinder portion,

wherein the tubular cylinder portion penetrates the lid member, and is fixed to the lid member,
wherein the dispense nozzle is arranged above the lid member, and the suction tube is arranged below the lid member,
wherein the suction port, which is formed in the upper surface of the inner container accommodated in the outer container, an apex of the reversed quadrangular pyramid shape, which is formed in the bottom surface, and the suction tube, which is arranged below the lid member, are arranged to be positioned on the same imaginary line in a vertical direction of the refillable container,
wherein, when the opening of the outer container is closed by the lid member, the suction tube arranged below the lid member is inserted from the suction port, which is formed in the upper surface of the inner container, into the inner container, and
wherein the suction tube of the pump has a length so that a distal end of the suction tube is positioned at a vicinity of the apex of the reversed quadrangular pyramid shape in the bottom surface of the inner container when the opening of the outer container is closed by the lid member.

2. A refillable container according to claim 1 ,
wherein, in the bottom surface of the inner container, a pair of gable roof-shaped bottom surface forming panels and a pair of gable wall-shaped bottom surface forming panels are continuously provided to lower edges of the four body panels,
wherein the pair of gable roof-shaped bottom surface forming panels face each other, and have outer sealing panels, which have a belt-like shape, at lower portions thereof,
wherein the pair of gable wall-shaped bottom surface forming panels face each other, and have inner sealing panels, which have a belt-like shape and a height smaller than that of the outer sealing panels,
wherein the pair of gable wall-shaped bottom surface forming panels are folded in between the pair of gable roof-shaped bottom surface forming panels, and facing surfaces of the outer sealing panels, which face each other, are bonded to each other to seal the inner container, and
wherein facing surfaces of the outer sealing panels and the inner sealing panels, and facing surfaces of the inner sealing panels are bonded to each other to seal the inner container.

Assignees

• Jujo Paper Co Ltd

Inventors

• Okude Hideki
• Noda Takaharu
• Tsuda Satoshi
• Kato Masatsugu
• Kusano Eiji
• Morinaga Satomi
• Horikoshi Tatsuya
• Yaguchi Tadahira

Classifications

• B05B15/30

  Dip tubes · CPC title

• A47K5/1205

  Dispensing from the top of the dispenser with a vertical piston · CPC title

• B65D83/00

  Containers or packages with special means for dispensing contents (dispensing means incorporated in closures B65D47/00) · CPC title

• B05B11/1047

  the pump being preassembled as an independent unit before being mounted on the container · CPC title

• B05B11/0038

  Inner container disposed in an outer shell or outer casing · CPC title