Vehicle package tray
In a vehicle package tray ( 100 ) disposed in the back of a rear seat of a vehicle, a sheet-shaped glass fiber mats ( 108 ), in which urethane resin ( 110 ) is impregnated, are overlapped on both surfaces of a semi-hard urethane foam layer ( 102 ), a front surface material ( 104 ) is overlapped on the surface of one glass fiber mat ( 108 ), in which the urethane resin ( 110 ) is impregnated, via a first adhesive film ( 106 ), back material ( 114 ) is overlapped on the surface of the other glass fiber mat ( 108 ), in which the urethane resin ( 110 ) is impregnated, via a second adhesive film ( 112 ), and the multi-overlapped object obtains a sound absorbing performance by being formed into a three-dimensional shape by being pinched and fixed by a press die, heated, pressurized, and thereby fused.
1. A vehicle package tray which is disposed in the back of a rear seat of a vehicle,
wherein sheet-shaped fiber-reinforced materials, in which thermal hardening resin is impregnated, are overlapped on both surfaces of a semi-hard urethane foam layer,
wherein a front surface material is overlapped on a surface of one fiber-reinforced material, in which the thermal hardening resin is impregnated, via a first adhesive film,
wherein a back material is overlapped on a surface of the other fiber-reinforced material, in which the thermal hardening fiber-reinforced resin is impregnated, via a second adhesive film,
wherein the laminated body obtains a sound absorbing performance by being formed into a three-dimensional shape by being pinched and fixed by a press die, heated, pressurized, and thereby fused,
wherein an airflow blocking layer which blocks airflow is provided in any one of the first adhesive film and the second adhesive film,
wherein the airflow blocking layer which is provided in any one of the first adhesive film and the second adhesive film is configured by a film made of synthetic resin with a melting point with which the film is not melted when pinched and fixed with the press die and subjected to heating and pressurizing processes,
wherein adhesive layers configured by synthetic resin films with a melting point with which the synthetic resin films are melted when pinched and fixed by the press die and subjected to the heating and pressurizing processes are configured on both surfaces of the airflow blocking layer, and
wherein the airflow blocking layer is interposed between the adhesive layers to form a multi-layered film.
2. The vehicle package tray according to claim 1 , wherein the semi-hard urethane foam layer has CS hardness from 30 to 55, density from 0.025 g/cm 3 to 0.035 g/cm 3 , a cell diameter from 0.2 mm to 0.5 mm, and an open-cell rate of not less than 90%.
3. The vehicle package tray according to claim 2 , wherein the semi-hard urethane foam layer has a thickness from 2.0 mm to 10.0 mm before molding by heating and pressurizing.
4. The vehicle package tray according to claim 1 , wherein the fiber-reinforced material has a unit weight from 100 g/m 2 to 250 g/m 2 .
5. The vehicle package tray according to claim 1 , wherein the airflow blocking layer is provided in the second adhesive film.