Patent ID: 9522646
Filing Date: 2016-12-20
CPC Classification: B60R

Claim Text:
1. A knee bolster that becomes deformed when a load from a knee of a passenger is inputted and thus absorbs a shock applied to the knee, the knee bolster comprising: a low-load absorption unit having a load input surface to which the load from the knee is inputted; a high-load absorption unit disposed in a more distant position from the knee than the low-load absorption unit in an input direction of the load and having a higher plastic deformation starting load than a plastic deformation starting load of the low-load absorption unit, wherein the low-load absorption unit and the high-load absorption unit are formed of a single hollow structure or different hollow structures, wherein the low-load absorption unit and the high-load absorption unit each comprise a transverse groove-shaped rib having a wall surface configured to be plastically deformed by the load, and wherein the transverse groove-shaped rib of the high-load absorption unit is formed so as to be larger in number than the transverse groove-shaped rib of the low-load absorption unit.