Abstract: A window blind structure is provided for use in a vehicle such as a van. The window blind structure includes a fixed, upright channel, which is mounted to the window frame of a window in a van by means of upper and lower brackets or fittings. The upper bracket or fitting includes a channel-shaped cap embracing the upper end of the fixed channel of the window blind structure, and has an upstanding leg and an angularly disposed foot for securement to the frame of a van window. The lower or bottom fitting or bracket includes a channel-shaped body slidably interfitting with the lower end of the window blind fixed channel by means of protuberances or splines. Angularly disposed legs on the body may or may not be provided with depending feet. In any event, outwardly directed integral pins are provided for interfitting with a stirrup to be mounted flat against a wall surface of a van window frame.