Title:
真空断熱材の製造方法
Document Type and Number:
Japanese Patent JP4861715
Kind Code:
B2
Abstract:
A vacuumed insulation panel is provided to improve productivity and reduce manufacturing costs for the same by allowing secondary machining such as groove formation, etc. after vacuum forming to be omitted. A vacuumed insulation panel comprises a plurality of convex parts and a plurality of concave parts. The convex parts is formed on the surface of an envelope material(2) containing core material(1). The concave parts is a rear surface shape of the envelope material, and formed in a position corresponding to the convex parts. Combination of the convex parts with the concave parts is arranged on both surfaces of the envelope material in a plurality of directions.
Inventors:
Tsutomu Kono
Kunisei Araki
Echigoya Tsune
Kunisei Araki
Echigoya Tsune
Application Number:
JP2006027859A
Publication Date:
January 25, 2012
Filing Date:
February 06, 2006
Export Citation:
Assignee:
Hitachi Appliances, Inc.
International Classes:
F16L59/06; B32B3/30
Domestic Patent References:
| JP2005061465A |
Attorney, Agent or Firm:
Manabu Inoue