Double-walled container

Patent metadata

Field	Value
Publication number	US-10329076-B2
Application number	US-201615543115-A
Country	US
Kind code	B2
Filing date	Jan 20, 2016
Priority date	Jan 30, 2015
Publication date	Jun 25, 2019
Grant date	Jun 25, 2019

Abstract

A double-walled container including: an outer layer body; an inner layer body, which is provided in a pinched-off portion and which passes through the outer layer body. The pinched-off portion is formed in a bottom due to pinch-off using a splittable mold in blow molding. The bottom is provided, on an inner side in a radial direction of an outer edge portion thereof, which serves as a ground-contacting surface, with a substantially cross-shaped recess, which is concave toward a mouth. The recess is configured by a first-direction recess portion, which extends along an extending direction of the slit, and a second-direction recess portion, which intersects with the first-direction recess portion. The slit is provided in a region in which the first-direction recess portion and the second-direction recess portion intersect with each other.

First claim

The invention claimed is:

1. A double-walled container with a bottle shape including a mouth, a trunk, and a bottom, the double-walled container comprising:
an outer layer body that constitutes an outer shell of the double-walled container;
an inner layer body that is accommodated inside the outer layer body and configured to be deformed to undergo volume reduction; and
a straight slit that is provided in a pinched-off portion and that passes through the outer layer body, the pinched-off portion being formed in the bottom due to pinch-off using a splittable mold in blow molding, wherein
the bottom is provided, on an inner side in a radial direction of an outer edge portion thereof serving as a ground-contacting surface, with a substantially cross-shaped recess that is concave toward the mouth,
the recess is configured by a first-direction recess portion that extends along an extending direction of the slit and a second-direction recess portion that intersects with the first-direction recess portion, and the slit is provided in a region in which the first-direction recess portion and the second-direction recess portion intersect with each other,
the double-walled container is configured to dispense a content medium by the weight of the content medium and also by squeezing the outer layer body, and
the first-direction recess portion and the second-direction recess portion both extend to the outer edge portion.

2. The double-walled container of claim 1 , wherein
the first-direction recess portion and the second-direction recess portion each have a substantially elliptical shape in a plan view thereof, and
each of the first-direction recess portion and the second-direction recess portion has a depth from the outer edge portion serving as the ground-contacting surface that increases gradually from an outer side to an inner side in the radial direction and that is maximum in the region in which the first-direction recess portion and the second-direction recess portion intersect with each other.

3. The double-walled container of claim 1 , wherein
the bottom is provided, on outer sides of both end portions of the slit provided in the pinched-off portion, with a pair of reinforcing ribs that extends along an extension line of the slit.

4. The double-walled container of claim 3 , wherein
each of the pair of reinforcing ribs is formed with at least one bitten portion in which the reinforcing rib is bitten from one lateral surface toward another lateral surface thereof.

5. The double-walled container of claim 4 , wherein
the at least one bitten portion formed in each of the pair of reinforcing ribs comprises a pair of bitten portions configured to have opposite bite directions to each other.

6. The double-walled container of claim 2 , wherein
the bottom is provided, on outer sides of both end portions of the slit provided in the pinched-off portion, with a pair of reinforcing ribs that extends along an extension line of the slit.

7. The double-walled container of claim 6 , wherein
each of the pair of reinforcing ribs is formed with at least one bitten portion in which the reinforcing rib is bitten from one lateral surface toward another lateral surface thereof.

8. The double-walled container of claim 7 , wherein
the at least one bitten portion formed in each of the pair of reinforcing ribs comprises a pair of bitten portions configured to have opposite bite directions to each other.

Assignees

• Kitora Shuichi
• Kurihara Tomoaki
• Miyairi Keisuke
• Yoshino Kogyosho Co Ltd

Inventors

• Kitora Shuichi
• Kurihara Tomoaki
• Miyairi Keisuke

Classifications

• B65D1/06

  with closable apertures at bottom · CPC title

• B65D1/0276

  having a continuous contact surface, e.g. Champagne-type bottom · CPC title

• B65D1/02

  Bottles or similar containers with necks or like restricted apertures, designed for pouring contents (thermally-insulated containers B65D81/38, A47J41/00; {feeding-bottles A61J9/00}) · CPC title

• B65D1/42

  Reinforcing or strengthening parts or members · CPC title

• B65D83/0055 Primary

  Operations & Transport · mapped topic