Windshield wipers were not automatically functioning using a press of a button. Originally, it was manually operated by turning a lever. Nowadays, the windshield wipers have evolved, and it can operate with less intervention. The wipers can silently work in the background while keeping your windows clear from distractions. It can move back and forth across innumerable times to keep rain or snow is away from your view of the road. In this post, you will learn the different mechanisms that affect windshield wipers.
Windshield wipers are not only found on your cars, but it is also present in airplanes, buses, and other means of transportation. Now, let’s focus on inside the wipers first.
What’s Inside the Wipers?
- The electric motor and gear reduction gives power.
- Meanwhile, a linkage transforms the rotational movement to back-and-forth motion you normally see wipers do.
Motor and Gear Reduction
- Wipers would need a huge amount of force to accelerate to allow the blades to quickly move back and forth. To do this, a worm gear is necessary.
- Inside the motor, there is an electronic circuit that checks if the wipers are down. Moreover, it is the circuit’s responsibility to ensure that the wipers stay at the bottom at all times. Additionally, if you set it to intermittent setting, it is the circuit that will maneuver the wipers in between positions.
- A camshaft is added to the gear reduction, and this will be spinning as the wiper motor rotates. There is an attached long road; when the cam twirls, the rod will operate back and forth. Now, we will now proceed with the specific functionalities of the wiper blades.