SHOCK ABSORBING TYPE STEERING COLUMN FOR STEERING AUTOMOBILE

摘要

PURPOSE:To avoid the injury of a crew's body by forming the steering column in the Title which is mounted on the automobile having an automatic crew retaining device, so that the column is contracted by the light shocking load at the time of a second collision by the crew. CONSTITUTION:When a vehicle is collided with a wall and the like and a first shock F is applied, a lower shaft 11a and an upper shaft 11b are slidden. A ball 11c cuts into the inner wall of the shaft 11a so as to cause plastic deformation and advances. Thus the energy is absorbed. At the same time, the backward protrusion of the steering column can be prevented. When the second shock F' is applied by the crew, the steering column is readily contracted by the slipping of an upper cramp 15 and a slide block 18 and the slide of a lower cramp 16 and a jacket tube 14.