Yoshino Kogyosho Co., Ltd.

Takumi Sugizaki

Shigeru Hayakawa

Hiroki Oguchi

Tatsuharu Ida

Noriyuki Asakawa

Akihito Wakai

Hiroyuki Shima

A decompression absorption bottle is formed of a synthetic resin material and has a cylindrical shape with a bottom. A bottom wall part of a bottom part includes a ground contact part; an upright peripheral wall part; and an annular movable wall part, the movable wall part is disposed to be freely rotatable in a vertical direction, the movable wall part is provided with an annular recess, and the annular recess is configured that an inner corner part having a V-shape or a U-shape protruding inward in the radial direction of the bottle when viewed from below, and an outer corner part having a V-shape or U-shape protruding outward in the radial direction of the bottle are alternately continued to each other in the circumferential direction of the bottle.

Decompression absorption bottle

A square bottle that includes a mouth portion, a shoulder portion, a body portion, and a bottom portion provided to be continuous in this order from the top to the bottom in a bottle axis direction, wherein in the body portion a plurality of panel surface portions are provided to be continuous with each other with corner portions therebetween in a circumferential direction around a bottle axis and in the body portion a first peripheral groove straddling at least the corner portions in the circumferential direction is formed, and a ridge portion straddling the corner portions in the circumferential direction is formed on an inner surface defining the first peripheral groove.

Bottle in which deformation of a body portion at the time of pressure reduction can be inhibited

A screw cap container including a container main body and a screw cap. The container main body includes a mouth tubular portion, which is provided with slope screw portions. The slope screw portions include: upper screw protrusions disposed at three or more different positions; lower long screw protrusions having left end positions same as left end positions of the upper screw protrusions, and each having a length longer than a length of each upper screw protrusion; and oblique screw protrusions extending obliquely from right ends of the lower long screw protrusions and each being connected to a left end of a different one of the upper screw protrusions. The screw cap includes a top wall and an outer circumferential wall. The outer circumferential wall is provided with cap screw protrusions disposed in the same number as the number of the upper screw protrusions.

Screw cap container

In a synthetic resin blow molded bottle, reduced pressure absorbing panel portions and column portions are formed alternately in the circumferential direction. Each column portion has a diameter that gradually increases downward and that remains substantially constant vertically. Each reduced pressure absorbing panel portion includes a pair of panel side edge portions, which is bent to the inner side from the adjacent column portions, a panel surface portion, which connects the pair of panel side edge portions, and a panel lower edge portion, which is bent to the outer side from a lower end edge of the panel surface portion. The panel surface portion of each reduced pressure absorbing panel portion includes a panel upper-side surface portion, whose diameter gradually increases downward, and a panel lower-side surface portion, which connects the panel upper-side surface portion and the panel lower edge portion and which has a substantially constant diameter vertically.

Growing community of inventors

Tokyo, Japan

Takumi Sugizaki