Patent ID: 6622590
Filing Date: 2003-09-23
Classification: B62D,Y10T

Abstract:
A core bar for a steering wheel mounted to a steering shaft, comprising:a first half shell; and a second half shell coupled to the first half shell, each half shell comprising: a boss portion coupled to the steering shaft, the boss portion including a boss-edge coupling part for coupling the first and second half shells along edges thereof, and a shaft fixing part placed substantially in a center of the boss portion and mounted to the steering shaft, a zone of weakness defined between the boss-edge coupling part and the shaft fixing part of the boss portion, and wherein the first and second half shells face each other without being coupled; a rim portion including a rim-edge coupling part for coupling the first and second half shells along the edges thereof and a rim hollow part defined between the first and second half shells; and a spoke portion interposed between the boss portion and the rim portion, the spoke portion including a spoke-edge coupling part for coupling the first and second half shells along the edges thereof and a spoke hollow part defined between the first and second half shells, the zone of weakness being smaller along an axial direction of the steering shaft and larger in a direction perpendicular to the axial direction of the steering shaft compared with each of the rim and spoke hollow parts.