초록 ▼

The present invention relates to an improved thermal window shade construction characterized in that the same is sufficiently flexible to be installed in windows of a wide variety of sizes with a minimum number of stock parts. The invention is further characterized in that the shade is highly resist

The present invention relates to an improved thermal window shade construction characterized in that the same is sufficiently flexible to be installed in windows of a wide variety of sizes with a minimum number of stock parts. The invention is further characterized in that the shade is highly resistant to dislodgement in a lateral inward direction of the shade margins from the side seal components. A further characterizing feature of the invention resides in the novel mechanism which locks the shade in its downward or operative position and at the same time functions to form an effective top seal. Still a further characterizing feature of the invention resides in the ability of the stock parts supplied to form an effective sealing relationship with shades of a wide variety of thicknesses, whereby laminated shade constructions with desired decorative effects may be readily employed.

대표청구항 ▼

A thermal isolating shade assembly comprising in combination, a header box, a roller shade member mounted in said box, for movement between extended and convoluted positions, said shade being normally urged to said convoluted position, an access slot formed in the bottom of said box, said shade proj

A thermal isolating shade assembly comprising in combination, a header box, a roller shade member mounted in said box, for movement between extended and convoluted positions, said shade being normally urged to said convoluted position, an access slot formed in the bottom of said box, said shade projecting downwardly through said slot, a shutter blade mounted to said box, said blade extending a transverse distance substantially coextensive with the width of said shade, and including a seal surface movable toward and away from said slot, spring means yieldingly urging said blade toward said slot to thereby clamp substantially the entirety of the width of said shade between a wall defining said slot and said seal surface to define a transverse seal area with said shade and clamp said shade against movement from said extended to said convoluted position, and release means operatively connected to said shutter manually actuable to shift said shutter away from said slot to thereby release said shade for return movement to said convoluted condition.