Abstract: A knee bolster for absorbing the impact to the knees of the occupant of a car involved in crash and controlling the posture of the occupant by receiving the knee load includes a pair of left and right panels (1) disposed to oppose to the knees, upper stays (2) provided to each of the panels (1), each upper stay having its rear portion fixed to the upper area of the corresponding panel (1), lower stays (3) provided to each of the panels (1), each lower stay having its lower portion fixed to the lower area of the corresponding panel (1) and its upper portion fixed to the front end of the corresponding upper stay (2), and a connecting member (4) for connecting the resulting pair of deltoid bodies. The bodies are disposed side by side and spaced apart when connected to the connecting member (4). Preferably, the upper and lower stays (2, 3) are arced, and the curvature radius of the lower stays (3) is smaller than that of the upper stays (2).

Abstract: A knee bolster for absorbing the impact to the knees of the occupant during car crash and controlling the posture of the occupant by receiving the knee load securely comprises a pair of left and right panels 1 for receiving the knees and disposed to oppose to the knees, upper stays 2 provided to each of the panels 1 having the rear side of which fixed to the upper area of the corresponding panel 1, lower stays 3 provided to each of the panels 1 having the lower end of which fixed to the lower area of the corresponding panel 1 and the upper end of which fixed to the front end of the corresponding upper stay 2, and a connecting member 4 for connecting the pair of deltoid assembled bodies each composed of said panel 1, said upper stay 2 and said lower stay 3, the assembled bodies disposed side by side and spaced apart when being connected to the connecting member 4. The upper and lower stays 2, 3 are arced, and the curvature radius of the lower stays 3 is smaller than that of the upper stays 2.

Abstract: The knee bolster structure to be mounted on an instrument panel 13 comprises a panel 2 and a stay 3 for supporting the panel 2, while the stay 3 is composed of a stay main body 4 and patch 5 so disposed on the stay main body 4 as to cover the stay main body 4. In a vehicle collision, the stay 3 is deformed starting from notches 8 respectively formed in the stay main body 4 but, during the deformation of the stay 3, the leading end side 11 of a top plate 9 provided in the patch 5 is butted against the bottom surface 6 of the stay main body 4, thereby being able to prevent stresses from being concentrated onto the notches 8. Also, since the wall portions 7 of the stay main body 4 are held by the side walls 10 of the patch 5, they are prevented from being opened outwardly. Due to this structure, the drag of the stay 3 or the knee bolster structure can be stabilized, so that shock energy caused in the vehicle collision can be absorbed efficiently.