Patent ID: 7931296
Filing Date: 2011-04-26
Classification: B60R

Abstract:
1. A vehicle steering system including an irrotational airbag module, the vehicle steering system comprising: a steering wheel that includes a steering wheel hub; a steering column including a pinion, which meshes with a rack bar for moving tie rods for steering vehicle wheels, and which is surrounded by a column housing and is supported by a bearing so that torque is transmitted from the steering wheel to an upper end of the steering column positioned adjacent the steering wheel; a torque transmission assembly connecting the steering wheel with the steering column by gears so that an axis of the steering wheel is offset from an axis of the steering column, and transmitting torque of the steering wheel to the steering column; a circuit connecting assembly in which a wire harness connected to an ACU (Airbag Control Unit) surrounds partially the column housing, is disposed in a space between the steering wheel and the steering column, and is connected to a central portion of a steering wheel hub of the steering wheel; and an airbag module including a mounting bracket and a cushion cover, the mounting bracket receiving a cushion deployed from the steering wheel due to the injection of gas of an inflator that receives a control signal from the ACU and operates to generate high-pressure gas, and being received in the steering wheel hub of the steering wheel, the cushion cover being inserted into the steering wheel hub, being configured to rupture during the deployment of the cushion, and being fitted to the mounting bracket so that the torque of the steering wheel is not transmitted to the cushion cover; wherein the circuit connecting assembly includes: