Abstract: A wind-shield blind system to thermally insulate the windshield of a car. The system includes a spindle tube with a spindle tube mechanism which allows the blind to extend only, preventing the blind from being accidentally rewound by locking the spindle tube in a stationary position at any of a plurality of positions in its range of extension. The spindle tube mechanism includes a push block which, when activated, causes the blind to be automatically rewound.

Abstract: A wind-shield blind having a hollow spindle having a first end in which a tubular plug fits and a second end in which a second plug fits, a shaft inserted in the spindle through the tubular plug, a spring having a first end attached to a bifurcate end of the shaft and a second end attached to the tubular plug, a first terminal element connected with a flat end of the shaft, a second terminal element connected with the first terminal element by a connecting element, and a switch. The second plug has a ratchet from which a pole co-axially protrudes. The second terminal element has a wall surrounding a disk defining a slot, a ratchet, and a hole. The second plug is biased toward the second terminal element by the spring, thereby urging the ratchet of the second plug to engage with the ratchet of the second terminal element to retain an opaque film at any desired positions while the pole passes through the hole. A switch has a button from which a cylinder protrudes and defines a rim enclosing a smooth cavity.