Yoshino Kogyosho Co., Ltd.

Goro Kurihara

Tadayori Nakayama

Hiroaki Imai

Takao Iizuka

Hiroki Oguchi

Junichi Itokawa

A bottle includes a cylindrical body portion in which a plurality of panel portions, which is recessed toward an inside in a radial direction of the body portion, are provided at intervals in a circumferential direction and pillar portions are each provided between the panel portions adjacent to each other in the circumferential direction. The panel portions each have a panel bottom wall portion located at an inside of the body in the radial direction and have a lateral wall portion extending from an outer circumferential edge of the panel bottom wall portion to an outside in the radial direction. A rib which protrudes toward the outside in the radial direction while having a gap with respect to the panel bottom wall portion is provided at the panel bottom wall portion, and a longitudinal lateral wall portion is at least directed in the circumferential direction.

Bottle

A bottle is a bottle formed of synthetic resin materials in a cylindrical shape with a bottom. A bottom wall portion in a bottom portion thereof includes a grounding portion positioned at an outer circumferential edge thereof, a rising circumferential wall portion connected to the grounding portion from an inside of a bottle radial direction and extending upward, a movable wall portion protruding from an upper end part of the rising circumferential wall portion toward the inside of the bottle radial direction, and a recessed circumferential wall portion extending upward from an inner end part in the bottle radial direction of the movable wall portion. The movable wall portion is arranged to be movable upward together with the recessed circumferential wall portion, around a connected portion with the rising circumferential wall portion. A plurality of ribs are arranged in the movable wall portion radially around a bottle axis.

Cylindrical bottle with bottom

A biaxially stretched, blow molded synthetic resin bottle has a bottom including a sunken bottom portion, and deforms as it draws upward in a direction of the bottle inside and includes a ring groove formed by being successively connected to an inner peripheral edge of a ground contact portion disposed at the foot of an outer peripheral wall of the bottom, a central concave portion disposed at a center of the bottom, and a flat ring portion disposed between an inner peripheral edge of the ring groove and the central concave portion, wherein the sunken bottom portion includes a plurality of short slim ribs disposed at several points of the flat ring portion.

Synthetic resin bottle

This invention intends to provide a large-size bottle that can be held firmly with a hand in simple handling. This can be achieved by fitting the thumb and a co-working finger into place and stopping them from sliding upward and laterally along the body wall, and also by stopping other fingertips from sliding laterally. A pair of gripsis formed in opposed walls of the body, and each gripcomprises a main recessionhaving a relatively large depth and an auxiliary recessionextending downward from this main recession. Fingertips are stopped by the main recessionfrom sliding upward and laterally, and are also stopped by the auxiliary recessionfrom sliding predominantly in the lateral direction. Since the thumb and all fingers are utilized for bottle handling, the bottleis held firmly and stably with a hand.

The present invention relates to a bottle which is formed of a synthetic resin material into a cylindrical shape with a bottom. A bottom wall portion of a bottom of the bottle includes: a ground contact portion; a rising peripheral wall portion; a ring-shaped movable wall portion; and a depressed peripheral wall portion. The movable wall portion is rotatably disposed about a connecting part with the rising peripheral wall portion so as to move the depressed peripheral wall portion upward, and a concave and convex portion is formed over an entire circumference of the rising peripheral wall portion.

A synthetic resin bottle has a cylindrical shape with a bottom, and a bottom wall portion that includes a grounding portion located at an outer circumferential edge, a rising circumferential wall portion that is connected from an inner side to the grounding portion and extends upward, an annular movable wall portion protruding from an upper end of the rising circumferential wall portion toward the bottle radial inner side, and a recessed circumferential wall portion between the bottle radial inner side and the movable wall portion. The movable wall portion is free to rotate around a portion connected to the rising circumferential wall portion so as to move the recessed circumferential wall portion in an upward direction. The rising circumferential wall portion extends to be gradually inclined toward the bottle inner side, and an inclined angle thereof is equal to or less than 10&#xb0; with respect to a bottle axis.

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Tokyo, Japan

Goro Kurihara