HEAT INSULATION DOUBLE CONTAINER AND PRODUCTION METHOD THEREOF

• Main Authors: IGARASHI MASAMI, MOTOOKA SHINYA
• Format: Patent
• Language: English; Japanese
• Published: 23.04.2020
• Subjects: ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; APPARATUS FOR MAKING BEVERAGES; COFFEE MILLS; 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; DOMESTIC ARTICLES OR APPLIANCES; FURNITURE; HANDLING THIN OR FILAMENTARY MATERIAL; HUMAN NECESSITIES; KITCHEN EQUIPMENT; PACKAGES; PACKAGING ELEMENTS; PACKING; PERFORMING OPERATIONS; SPICE MILLS; STORING; SUCTION CLEANERS IN GENERAL; TRANSPORTING

To provide a heat insulation double container comprising a weld part between an inner container and an outer container on an inside of a container hole, in which a mark of weld when performing weld from an external side of the container hole can be clearly understood, which can reduce failure of weld and improve yield of a product.SOLUTION: A heat insulation double container 1 is configured so that a heat insulation layer 4 is formed between a substantially bottomed cylindrical and metal inner container 2 and a substantially bottomed cylindrical and metal outer container 3, a folded part 312 folded inward is formed on a tip end part 311 of a mouth part 31 of the outer container 3, a tip end part 211 of a mouth part 21 of the inner container 2 is engaged so as to contact an inner surface of the folded part 312, a tip end edge 213 of the mouth part 21 of the inner container 2 arranged inside of the folded part 312 is welded and fixed to the folded part 312.SELECTED DRAWING: Figure 5 【課題】容器口の内側に内容器と外容器の溶接部が設けられる断熱二重容器において、容器口の外方から溶接する際の溶接の目印を分かりやすくでき、溶接不良の低減、製品の歩留まりの向上を図ることができる。【解決手段】略有底筒状で金属製の内容器２と略有底筒状で金属製の外容器３との間に断熱層４が設けられ、外容器３の口部３１の先端部３１１に内側に折り返された折返部３１２が形成され、内容器２の口部２１の先端部２１１が折返部３１２の内面に接触するように係合され、折返部３１２の内側に配置されている内容器２の口部２１の先端縁２１３が折返部３１２に溶接して固定されている断熱二重容器１。【選択図】図５