1. Multiple Joints: An articulated wiper arm has several joints or pivot points that allow it to move and follow the curvature of the windshield. Typically, there are two or three joints along the length of the wiper arm. These joints provide the arm with the flexibility to move left, right, up, and down.
2. Variable Geometry: The multiple joints create variable geometry in the wiper arm, which means that it can adjust its position to maintain optimal contact with the windshield. This feature becomes particularly important when dealing with highly curved windshields found on certain vehicles, such as buses, trucks, and large SUVs.
3. Improved Wiping Performance: Articulated wiper arms provide better wiping performance compared to conventional fixed wiper arms. By conforming to the shape of the windshield, the wiper blade attached to the articulated arm can effectively clear away rain, snow, or debris from a larger surface area. This leads to improved visibility and better driving safety in various weather conditions.
4. Increased Blade Coverage: Due to the variable geometry, articulated wiper arms offer increased blade coverage across the windshield. This translates into a broader sweeping area and reduced chances of missed spots, ensuring that the entire windshield remains clean and clear during use.
5. Reduced Wear and Tear: The flexibility and precise fit achieved with an articulated wiper arm reduce the strain on the wiper blade and the windshield itself. This can prolong the life of the wiper blade and help prevent premature wear or damage to the windshield from unnecessary friction or scraping.
6. Common in Buses, Trucks, and Large Vehicles: Articulated wiper arms are commonly used in vehicles with large and curved windshields, such as buses, trucks, and certain SUV models. These vehicles often have more complex windshield shapes, making them suitable candidates for articulated wiper arms that ensure effective wiping at different angles and curvatures.
In summary, an articulated wiper arm is a special type of wiper arm featuring multiple joints and sections that enable it to adapt and move along the contoured shape of curved windshields. It provides improved wiping performance and coverage, with reduced wear and tear, making it particularly beneficial for buses, trucks, and specific vehicles with complex windshield geometries.
