Synthetic resin bottle

Patent metadata

Field	Value
Publication number	US-9669957-B2
Application number	US-201313863967-A
Country	US
Kind code	B2
Filing date	Apr 16, 2013
Priority date	May 31, 2007
Publication date	Jun 6, 2017
Grant date	Jun 6, 2017

Abstract

A technical problem is to fully make up for a restricted upper limit to the preform body wall thickness. An object is to provide a bottle which is narrow-mouthed and yet has a substantially expanded body. In principle, the bottle may include a mouth opening portion with a bore diameter of 10 mm or less and a maximum diameter of the body is 2.5 times or more than the bore diameter of the mouth opening portion, and wherein a maximum diameter portion of the body has a minimum wall thickness of 0.45 mm or more.

First claim

The invention claimed is:

1. A synthetic resin bottle which is a biaxially drawn, blow molded bottle, comprising:
a body portion with a flat cross section having a circular shape;
a mouth opening portion disposed on a body, the mouth opening portion having a bore diameter of 10 mm or less; and
a cylindrical shaped neck portion disposed between the mouth opening portion and the body,
wherein a maximum diameter of the body is at least 2.5 times more than the bore diameter of the mouth opening portion,
wherein a screw thread is notched on an outer peripheral surface of the mouth opening portion and a height of the mouth opening portion is formed to be less than a height of the neck portion,
wherein a maximum diameter portion of the body has a minimum wall thickness of 0.45 mm or more,
wherein the neck portion has a minimum outer diameter in a range from an outer diameter of the mouth opening portion to 2.0 times as much as the bore diameter of the mouth opening portion, and
wherein a flat ring portion is disposed under the neck portion and between the neck portion and the body.

2. The synthetic resin bottle according to claim 1 , wherein the maximum diameter of the body is 3.0 times or more as much as the bore diameter of the mouth opening portion.

3. The synthetic resin bottle according to claim 1 , wherein a cap in a roofed cylindrical shape is screwed on the mouth opening portion so that the cap covers the neck portion.

4. The synthetic resin bottle according to claim 1 , wherein the bottle is utilized as a container for accommodating a make-up liquid.

5. The synthetic resin bottle according to claim 1 , wherein a polypropylene series resin is used as a synthetic resin material for the bottle.

6. The synthetic resin bottle according to claim 1 , wherein a polyethylene naphthalate series resin or a polyacrylonitrile series resin is used as a synthetic resin material for the bottle.

7. The synthetic resin bottle according to claim 1 , wherein an overhang is formed on an inner peripheral surface of the bottle on a border between the mouth opening portion and the neck portion, a locking mechanism being formed using the overhang.

Assignees

• Yoshino Kogyosho Co Ltd

Inventors

• Ishii Yusuke
• Otsuka Takashi
• Inagawa Katsuyoshi
• Iizuka Takao

Classifications

• B65D1/0223

  characterised by shape · CPC title

• B29K2105/258

  Tubular · CPC title

• B29L2031/7158

  Bottles · CPC title

• B65D1/0207 Primary

  characterised by material, e.g. composition, physical features · CPC title

• B29B11/14 Primary

  characterised by structure or composition · CPC title