A crucial part of a truck's steering column is a clockspring, sometimes referred to as a spiral cable or a clock spring assembly. It is essential for preserving the electrical connections between the spinning steering wheel and the stationary component of the steering column while enabling the wheel to turn freely. The word "clock spring" derives from the component's shape, like a spiral or ribbon.
The primary functions of a clock spring in a steering wheel include:
Airbag Deployment: The clock spring enables the electrical connection to the driver's airbag, which is located in the center of the steering wheel. During a collision, when the airbag needs to deploy rapidly for safety, the clock spring ensures that the electrical signals required for deployment can reach the airbag without interruption.
Horn Operation: The clock spring allows the electrical signal from the horn button on the steering wheel to travel to the horn assembly, resulting in the activation of the horn when the driver presses the horn button.
Steering Wheel Controls: In modern vehicles, many steering wheels feature various controls, such as audio volume adjustment, cruise control activation, phone call buttons, and more. The clock spring enables these controls to communicate with the vehicle's systems without the need for a hard-wired connection.
Indicator Lights: Some steering wheels have indicator lights that provide information about cruise control status, audio settings, or other vehicle functions. The clock spring ensures that these indicator lights receive power and can display the necessary information.
