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A fabric window blind includes a head frame, a roller, an adjustment mechanism, slats, a bottom rail and a light-admitting shade. The roller is horizontally rotatably mounted inside the head frame. The adjustment mechanism has a control axle horizontally pivotally mounted inside the head frame belo

A fabric window blind includes a head frame, a roller, an adjustment mechanism, slats, a bottom rail and a light-admitting shade. The roller is horizontally rotatably mounted inside the head frame. The adjustment mechanism has a control axle horizontally pivotally mounted inside the head frame below the roller, and two cord member sets having top ends connected to the control axle and bottom ends vertically downwardly suspended from the control axle. The slats are arranged at different elevations below the control axle. The slats each have two opposite lateral sides respectively joined to the cord member sets. The bottom rail is fastened to the bottom ends of the cord member sets below the slats. The shade has a first end fastened to the head frame, and a second end extended downwardly over the bottom rail and turned upwards toward the head frame and fastened to the roller.

대표청구항 ▼

What is claimed is: 1. A window blind comprising: a head frame horizontally affixed to a top side of a window; a roller horizontally rotatably mounted inside said head frame; an adjustment mechanism having a control axle horizontally pivotally mounted inside said head frame below said roller, and

What is claimed is: 1. A window blind comprising: a head frame horizontally affixed to a top side of a window; a roller horizontally rotatably mounted inside said head frame; an adjustment mechanism having a control axle horizontally pivotally mounted inside said head frame below said roller, and two cord member sets having top ends connected to said control axle and bottom ends vertically downwardly suspended from said control axle; a plurality of slats arranged in parallel at different elevations below said control axle, said slats each having two opposite lateral sides respectively joined to said cord member sets; a bottom rail fastened to said bottom ends of the cord member sets below said slats; and a light-admitting shade having a first end fastened to said head frame, and a second end extended downwardly over said bottom rail and turned upwards toward said head frame and fastened to said roller. 2. The window blind as claimed in claim 1, wherein said bottom rail is pressed on said shade. 3. The window blind as claimed in claim 1, wherein said head frame comprises a longitudinally extended receiving chamber for accommodating said roller and said control axle of said adjustment mechanism, and a bottom opening in communication with said receiving chamber for the passing of said shade and said cord member sets. 4. The window blind as claimed in claim 1, further comprising an antireverse member mounted inside said head frame for keeping said roller rotatable only in one direction. 5. The window blind as claimed in claim 4, wherein said antireverse member has a top end connected to said head frame and a bottom end terminating in a retaining tip; said roller has a locating groove in engagement with the retaining tip of said antireverse member. 6. The window blind as claimed in claim 5, wherein said antireverse member is formed of a spring plate. 7. The window blind as claimed in claim 5, wherein said retaining tip extends from said top end of said antireverse member at an angle. 8. The window blind as claimed in claim 5, wherein said antireverse member is pivotally mounted to said head frame. 9. The window blind as claimed in claim 1, wherein said bottom rail is a cylindrical member. 10. The window blind as claimed in claim 9, wherein said bottom rail has a predetermined gravity weight and is pressed on said shade to produce a friction resistance such that said bottom rail is rotated when rotating said roller to roll up said shade. 11. The window blind as claimed in claim 1, wherein said bottom rail comprises a cylindrical rail body, and two end caps fastened to two distal ends of said cylindrical rail body, said end caps each comprising a connecting portion fastened to said cylindrical rail body, and a cap head disposed outside said cylindrical rail body, said cap head having a diameter greater than that of said cylindrical rail body. 12. The window blind as claimed in claim 11, wherein said cylindrical rail body is a hollow cylindrical member; the connecting portions of said end caps are respectively press-fitted into two distal ends of said cylindrical rail body. 13. The window blind as claimed in claim 1, wherein said slats are fabric slats each having two hemmed long sides respectively mounted with a respective support rod. 14. The window blind as claimed in claim 1, wherein said control axle has one end extended out of said head frame for operation by a user. 15. The window blind as claimed in claim 1, wherein said slats are arranged in parallel at different elevations at an equal pitch, each having two opposite long sides and two opposite short sides; the pitch between each two adjacent slats is slightly smaller than the length of the short sides of said slats. 16. The window blind as claimed in claim 1, wherein said bottom rail comprises a cylindrical rail body and two end caps respectively fastened to two distal ends of said cylindrical rail body, said end caps each having an outer diameter greater than that of said cylindrical rail body; said shade has a part extended over said cylindrical rail body of said bottom rail at a bottom side and disposed between said end caps. 17. The window blind as claimed in claim 1, further comprising a lifting mechanism coupled to said roller for operation by a user to rotate said roller and to stop said roller in position. 18. The window blind as claimed in claim 1, wherein said shade comprises a longitudinally extended first half and a longitudinally extended second half, said first half and said second half having different light transmittance. 19. The window blind as claimed in claim 1, wherein said bottom rail is an elongated, rectangular member pressed on said shade such that said bottom rail is moved upwards with said shade and said slats are received on a top side of said bottom rail one above another when rotating said roller to roll up said shade; said bottom rail is lowered with said shade and said slats are released from said bottom rail one after another when rotating said roller to let off said shade. 20. A window blind comprising: a head frame affixed to a top side of a window; a shade control system comprising a roller horizontally rotatably mounted inside said head frame, and a shade having a first end fastened to said head frame, and a second end fastened to said roller such that said roller rolls up and extends out said shade upon rotation of said roller; and a slat control system comprising a bottom rail suspended below said roller and pressed on said shade, a plurality of slats arranged at different elevations between said roller and said bottom rail, and an adjustment mechanism supporting said slats between said roller and said bottom rail, said bottom rail receiving and extending out said slats upon rotation of said roller. 21. The window blind as claimed in claim 20, wherein said shade control system further comprises a lifting mechanism coupled to said roller for operation by a user to rotate said roller and to stop said roller in position. 22. The window blind as claimed in claim 20, wherein said bottom rail is a cylindrical member pressed on said shade such that said bottom rail is moved upwards and rotated in one direction to receive said slats on a periphery thereof when said roller is rotated to roll up said shade; said bottom rail is lowered and rotated in a reversed direction to release said slats from the periphery thereof when said roller is rotated to extend out said shade. 23. The window blind as claimed in claim 20, wherein said bottom rail is an elongated, rectangular member pressed on said shade such that said bottom rail is moved upwards and said slats are received on a top side of said bottom rail one above another when said roller is rotated to roll up said shade; said bottom rail is lowered and said slats are released from said bottom rail one after another when said roller is rotated to extend out said shade. 24. The window blind as claimed in claim 20, wherein said adjustment mechanism comprises a control axle horizontally pivotally mounted inside said head frame between said roller and said slats, and a plurality of cord member sets vertically arranged at two sides and respectively connected between said control axle and said bottom rail and joined to two opposite long sides of each said slat to hold said slats at different elevations between said roller and said bottom rail.