POSITIVELY PRESSURIZED CAN

• Main Authors: OKUMURA TOSHIKI, MANITA KIYOSUMI
• Format: Patent
• Language: English; Japanese
• Published: 08.08.2019
• Subjects: ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; CONVEYING; HANDLING THIN OR FILAMENTARY MATERIAL; PACKAGES; PACKAGING ELEMENTS; PACKING; PERFORMING OPERATIONS; STORING; TRANSPORTING

To provide a positively pressurized can which has a restoration sound of unit panels consisting a polyhedral wall at an extent providing no problems.SOLUTION: There is provided a positively pressurized can comprising a can main body having a can drum and a can lid sealing the can main body in a positively pressurized state. At least one section of the can drum has a polyhedral wall configured with a large number of unit panels sectioned with convex boundary ridgelines. The unit panels have configurations that: having a recessed shape toward inside of the can drum under a free state; to be deformed in a direction where the depression is reduced due to internal pressure affecting on the can drum; to be restored to the original configuration when the can lid is removed; and providing restoration sound upon the restoration. The maximum depth change level of each unit panel is designed 0.54 mm or less, or unit panels having 0.4 mm or more of the maximum value of the maximum depth change level have an average value of 0.45 mm or less of the maximum depth change level.SELECTED DRAWING: Figure 6 【課題】多面体壁を構成する単位パネルの復元音を気にならない程度に小さくし得る陽圧缶を提供する。【解決手段】缶胴を有する缶本体と、缶本体を陽圧状態で密閉する缶蓋とを備え、前記缶胴の少なくとも一部に凸状の境界稜線によって区画された多数の単位パネルで構成される多面体壁を有し、前記単位パネルは、自由状態では缶胴の内方に窪んだ形状で、前記缶胴に作用する内圧によって窪みが小さくなる方向に変形し、缶蓋の開封時に元の形状に復元し、復元する際に復元音を発する構成の陽圧缶において、前記単位パネルの最大デプス変化量の最大値が０．５４ｍｍ以下、あるいは、最大デプス変化量の最大値が０．４ｍｍ以上の単位パネルの最大デプス変化量の平均値が０．４５ｍｍ以下となるように構成されている。【選択図】図６