HEAT INSULATING STRUCTURE AND MANUFACTURING DEVICE THEREOF

• Main Authors: MASE TOKUTARO, WATANABE KUNIHIKO, NEGISHI MASAKI
• Format: Patent
• Language: English
• Published: 30.07.1999
• Edition: 6
• Subjects: BLASTING; COLD ROOMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHERSUBCLASS; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEAT PUMP SYSTEMS; HEATING; ICE-BOXES; JOINTS OR FITTINGS FOR PIPES; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; MANUFACTURE OR STORAGE OF ICE; MEANS FOR THERMAL INSULATION IN GENERAL; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; PIPES; REFRIGERATION OR COOLING; REFRIGERATORS; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; THERMAL INSULATION IN GENERAL; TRANSPORTING; WEAPONS

PROBLEM TO BE SOLVED: To provide a heat insulating structure, which prevents accumulation of air on the facing material inside and is improved in appearance and strength. SOLUTION: A apurality of minute air vent holes 2A are formed in facing materials 2 constituting a heat insulating structure 1. A clearance between respective facing materials 2, 2 is filled with urethane foam 5. A sheet 4 is constructed of a waterimpermeable material, which is provided with minute vent holes arranged over the whole surface, such as a comparatively thin open cellular urethane foam, non-woven fabric, resin fiber, and glass wool. That is, minute vent holes arranged in the sheets 4 facilitate passage of air and foaming gas from urethane original solution between the facing members 2, 2, while the sheets 4 prevent (prohibit) passage of water such as the urethane original solution and humidity.