| 摘要 |
#CMT# #/CMT# The groundsheet has upper and lower layers (1, 2) made of thermosetting material, and a heating film (3) forming a heating middle layer. The film extends between the layers (1, 2) and is formed of flexible resistors. A border (6) free from the film is arranged at the outline of the groundsheet. The layers (1, 2) are connected together at the border by adherence of their opposite surfaces for enclosing the film between them. The layer (1) is covered by a comfort cover (5) e.g. carpet, and a cord (4) electrically connects the film to an external power source. #CMT# : #/CMT# An independent claim is also included for a method of obtaining a heating groundsheet. #CMT#USE : #/CMT# Used in the furniture field. #CMT#ADVANTAGE : #/CMT# The organization of the groundsheet structure permits to obtain the groundsheet easily and at low costs by large series industrialization. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a schematic top view of a heating groundsheet. 1, 2 : Upper and lower layers 3 : Heating film 4 : Cord 5 : Comfort cover 6 : Border #CMT#METALLURGY : #/CMT# The flexible resistors are made of conducting material such as aluminum. #CMT#POLYMERS : #/CMT# The two layers are made of thermosetting material such as polyvinyl chloride (PVC). The flexible resistors are made of conducting material covered with a polyester film. |
