What Causes the Abnormal Noise When Opening and Closing Car Doors?

[StJuniper]

Car doors produce abnormal noise when opening and closing due to the following reasons: 1. Wear and tear on the door hinges. 2. Aging of the door sealing rubber strips. 3. Excessive dirt on the door limiters. 4. Poor contact in the door lock mechanism, presence of gaps, or inadequate lubrication. Additional Information: I. Function of Hinges: Supports the door while allowing it to open and close smoothly. II. Function of Door Limiters: Restricts the extent to which the door can open. III. Design Requirements for Car Doors: 1. Ensure ease of passenger entry and exit, with the maximum opening angle controlled at approximately 65° to 70°; 2. Avoid positional interference with other parts during the opening process; 3. Reliable locking when the door is closed to prevent it from opening while driving; 4. Convenient operation of door mechanisms, including smooth closing and easy window lifting; 5. Good sealing performance; 6. Large transparent area to meet lateral visibility requirements; 7. Sufficient strength and rigidity to ensure reliable door operation, reduce door vibrations, improve side impact safety, and prevent door sagging; 8. Good manufacturability and assembly process for doors.