Window blinding system with multiple shading effects

• US 6,648,048 B2
• Filed: 01/07/2002
• Issued: 11/18/2003
• Est. Priority Date: 01/07/2002
• Status: Expired due to Term

• Current Assignee: Tony Lai
• Original Assignee: Tony Lai
• Inventors: Lai, Tony
• Primary Examiner(s): LEV, BRUCE ALLEN
• Application Number:
  US10/038,447
• Publication Number:
  US 20030127197A1
• Time in Patent Office: 680 Days
• Field of Search: 160/113, 160/115, 160/84.01, 160/84.07, 160/167, 160/168.R, 160/176.R, 160/178.R, 160/178.3 R, 160/236
• US Class Current: 160/115
• CPC Class Codes: E06B 9/303 with ladder-tape
• CPC Class Codes: E06B 9/32 Operating, guiding, or securing devices therefor operation of tilting bars E06B9/307
• CPC Class Codes: E06B 9/384 Details of interconnection or interaction of tapes and lamellae
• CPC Class Codes: E06B 9/386 Details of lamellae

Abstract

A window blinding system includes a top traverse supporter adapted for affixing to a top beam of a ceiling, a first shading arrangement, and a second shading arrangement. The first shading arrangement includes a first base member, a plurality of first slats, a first blind supporting system for spacedly and suspendedly supporting the first slats horizontally between the top traverse supporter and the first base member, and a first operating system for selectively lifting up and dropping down the first base member towards and from the top traverse supporter. The second shading arrangement includes a plurality of second slats and a second blind supporting system for spacedly and suspendedly supporting the second slats horizontally between the first slats. Therefore, by selectively adjusting positions of the first and second slats, the first and second shading arrangements are capable of providing multiple shading effects.

Claims

1. A window blind system, comprising:

a top traverse supporter;

a first shading arrangement downwardly extended from said top traverse supporter and comprising a first base member, a plurality of first slats, a first blind supporting system for spacedly supporting said first slats horizontally between said top traverse supporter and said first base member and controlling a tilt angle of each of said first slats, and a first operating system for selectively lifting up said first base member towards said top traverse supporter and lowering said first base member to drop downwardly away from said top traverse supporter;

wherein said first blind supporting system comprises a traverse arm rotatably mounted on said top traverse supporter, two pairs of first and second supporting cords extended from two ends of said traverse arm to said first bottom member wherein said first slats are positioned between said first and second supporting cords, and a plurality of traverse cords spacedly extended between said first and second supporting cords for said first slats to rest on said traverse cords respectively;

wherein said first operating system comprises a lift lock rotatably mounted on said top traverse supporter and a pair of lift cords each having a first end portion extended to said first bottom member, each of said two lift cords upwardly extending to penetrate through said first slats and then traversely extending through said top traverse supporter, wherein a second end portion of each of said lift cords is extended out of said top traverse supporter via said lift lock to control a rotation of said first shading arrangement;

a second shading arrangement comprising a second base member, a plurality of second slats, and a second blind supporting system for spacedly supporting said second slats horizontally between said top traverse supporter and said second base member, and a second operation system for selectively lifting up said second base member towards said top traverse supporter and lowering said second base member to drop downwardly away from said top traverse supporter; and

wherein said second blind supporting system is arranged to spacedly support said second slats horizontally between every two of said first slats and comprises a blind lock rotatably mounted on said top traverse supporter, two pairs of first and second supporting strings each having a lower end extended to said first bottom member, and a plurality of traverse braces spaced and extending between said first and second supporting strings for said second slats to rest on said traverse braces respectively, wherein said pairs of first and second supporting strings of said second blind supporting system are extended adjacent to said pairs of first and second supporting cords of said first blind supporting system in a side by side manner, each pair of said first and second supporting strings upwardly extends to two opposed sides of said first and second slats and then traversely extends through said top traverse supporter, wherein free end portions of said first and second supporting strings are extended out of said top traverse supporter via said blind lock to control a vertical displacement of each of said second slats,

wherein each of said lift cords also upwardly extends to penetrate through said second slats to form said second operation system in such a manner that said first operation system is adapted to selectively lift and lower said first and second shading arrangements at the same time, wherein each of said second slats is horizontally suspended at a gap level defined at a middle of every two of said first slats wherein said gap level is formed by said traverse cord of said first blind supporting system such that a distance between every two of said first slats is double a height of said gap level.

2. A window blind system, as recited in claim 1, further comprising a third shading arrangement which comprises a plurality of third slats and a third blind supporting system arranged to spacedly supporting said third slats horizontally between said first and second slats and comprising a second blind lock rotatably mounted on said top traverse supporter, two pairs of first and second supporting ropes each having a lower end extended to said first bottom member, and a plurality of traverse ropes spaced and extending between said first and second supporting ropes for said third slats to rest on said traverse ropes respectively, each pair of said first and second supporting ropes upwardly extends to two opposed sides of said first, second, and third slats and then traversely extends through said top traverse supporter, wherein free end portions of said first and second supporting ropes are extended out of said top traverse supporter via said second blind lock to control a vertical displacement of each of said third slats.

3. A window blind system, as recited in claim 2, wherein each of said lift cords also upwardly extends to penetrate through said third slats in such a manner that said first operation system is adapted to selectively lift and lower said first, second, and third shading arrangements at the same time.

4. A window blind system, as recited in claim 3, wherein every two of said first slats defines two gap levels where said second and third slats positioned thereat respectively, wherein a vertical distance of each gap level is one-third of a distance between each two first slats.

5. A window blind system, as recited in claim 1, wherein said traverse braces are selectively extended between said first and second supporting strings to support said second slats in such a manner that said second slats which are supported by said traverse braces respectively are lifted upwardly to overlap and support underneath said first slats respectively when a pulling force is applied on said free end portion of said first and second supporting strings.

6. A window blind system, as recited in claim 5, wherein said second blind supporting system further comprises at least a slat clip detachably mounted on said second slats, wherein said slat clip comprises a main body having a length longer than a width of said second slat and a guiding slot extended from a longitudinal side of said main body to a mid-portion thereof for said lift cord passing through, wherein said main body is adapted to mount on said second slat by folding two ends portion of said main body to a bottom surface of said second slat overlappedly so as to sandwich said traverse brace between said main body and said second slats.

7. A window blind system, as recited in claim 5, wherein said second blind supporting system further comprises at least a slat clip detachably mounted on said second slats, wherein said slat clip comprises a tubular main body having a first end, a first and a second guiding grooves, which are perpendicular to each other, traversely extended from said first end of said main body respectively, wherein said first guiding groove has a width adapted for said second slat sliding therein, and said second guiding groove has a width adapted for said first and second supporting strings sliding therein, in such a manner that said second slat is adapted to mount between said first and second supporting strings by said slat clip slidably mounting on said second slat.