aknatõstukid

Aknatõstukid, also known as window lifters or window regulators, are mechanical devices used to raise and lower the windows of a vehicle. They are a common feature in most automobiles, allowing occupants to control ventilation and provide access to the outside environment. Historically, window lifters were operated manually by a crank handle, which the driver or passengers would turn to engage a gear mechanism that moved the window up or down. This manual system, while reliable, required physical effort.

Modern vehicles predominantly utilize electric window lifters, often referred to as power windows. These systems employ an electric motor that, when activated by a switch, drives a gear or cable system to move the window. The switch, typically located on the door panel, sends an electrical signal to the motor, initiating the window's movement. Many vehicles also feature a master control panel, usually on the driver's door, allowing the driver to operate all windows, as well as a safety lockout feature to prevent passengers from accidentally operating the windows. The mechanism behind both manual and electric lifters involves a regulator arm or a series of cables and pulleys that guide the window glass within its channel.