초록 ▼

A fabric light control window covering in which fabric vanes are adhesively bonded between two sheer fabric sheets such that relative movement between the sheer fabric sheets in a direction perpendicular to the longitudinal direction of the fabric vanes changes the angle of the fabric vanes and, thu

A fabric light control window covering in which fabric vanes are adhesively bonded between two sheer fabric sheets such that relative movement between the sheer fabric sheets in a direction perpendicular to the longitudinal direction of the fabric vanes changes the angle of the fabric vanes and, thus, controls the amount of light admitted through the shade. The vanes are bonded to the sheer fabric sheets in a manner which tends to bias the sheer fabric sheets together to the nonlight admitting position. Also, disclosed are methods and apparatus for manufacturing the above window covering. The method features linear application of adhesive to the vane material which provides for a uniform appearance in the finished product. A heat setting process and apparatus is disclosed in which the bonded layers of sheer fabrics and vanes are fed between belts over hot and cool surfaces, under uniform tension and pressure. This provides for heat setting of the layers of the window covering to a uniform temperature-size relationship without inducing wrinkles or distortion into the fabric during heat setting.

대표청구항 ▼

[ What is claimed is:] [1.] A window covering comprising a first side comprised of a relatively translucent material, a second side comprised of a relatively translucent material and disposed substantially parallel to the first side, and a plurality of vanes extending between the sides,wherein the v

[ What is claimed is:] [1.] A window covering comprising a first side comprised of a relatively translucent material, a second side comprised of a relatively translucent material and disposed substantially parallel to the first side, and a plurality of vanes extending between the sides,wherein the vanes are angularly controllable and change shape by relative movement of the first and second sides between a first position whereby the vanes are substantially planar and extend substantially parallel to the first and second sides, and a second open position whereby the vanes have smooth curving portions and are of generally S-shaped cross-sectional configuration.