| 摘要 |
#CMT# #/CMT# The dashboard of an automobile vehicle, comprises a passage opening (16) of inflatable bag, a substrate (10), a foam layer (12), and a skin (14). The opening is formed on the substrate, and closed by a metal shutter (20) associated with the substrate. The substrate is formed by a first plastic material, which is fragile at low temperatures. A reinforcement body such as welding is continuously fixed to a periphery of the opening and formed by a second plastic material, which is ductile at low temperatures, and comprises a firing channel of the inflatable bag. #CMT# : #/CMT# The dashboard of an automobile vehicle, comprises a passage opening (16) of inflatable bag, a substrate (10), a foam layer (12), and a skin (14). The opening is formed on the substrate, and closed by a metal shutter (20) associated with the substrate. The substrate is formed by a first plastic material, which is fragile at low temperatures. A reinforcement body such as welding is continuously fixed to a periphery of the opening and formed by a second plastic material, which is ductile at low temperatures, and comprises a firing channel of the inflatable bag. The shutter comprises a barrier and a framework. The barrier is intended to revolve on an edge of the framework. A space rests between the remaining edge of the framework and the barrier. The barrier has a dimension higher than that of the opening, and is held on the substrate with interposition of a seal band. A part of fixation is formed to a substrate surface opposed to the reinforcement body and adjacent to the foam layer. The seal band is disposed between a flange of the reinforcement body and the shutter. #CMT#USE : #/CMT# The dashboard is useful for an automobile vehicle. #CMT#ADVANTAGE : #/CMT# The dashboard avoids the breakage proximal to the opening using a ductile plastic material thus eliminating any danger to the passengers, has improved mechanical and physical properties, and is simple and easy to manufacture. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The figure shows a schematic view of the dashboard. 10 : Substrate 12 : Foam layer 14 : Skin 16 : Opening 20 : Shutter. #CMT#POLYMERS : #/CMT# Preferred Components: The first plastic material is a copolymer of styrene and maleic anhydride. |
