Dimmable Roman Blinds (Part 1)

Abstract

A dimming Roman blind (a type) includes: an upper rail with a first rope winder and a second rope winder inside, the first rope winder controlling a first rope body and the second rope winder controlling a second rope body, and the first and second rope winders being operated and controlled by a first pull cord and a second pull cord respectively; a middle rail, movably and vertically disposed below the upper rail and connected to the first rope body; a lower rail, movably and vertically disposed below the middle rail; and a Roman blind body, assembled between the middle rail and the lower rail and connected to the second rope body; thereby, the middle rail and the Roman blind system are wound and opened by the first and second rope winders respectively. The dimming Roman blind of the present invention has a two-stage operation control effect, greatly improving the practicality of the Roman blind.

Claims

1. A dimming Roman blind, comprising: An upper rail is provided with at least one first rope winder and at least one second rope winder. The first rope winder winds up and unwinds a first rope, and the second rope winder winds up and unwinds a second rope. The first and second rope winders are operated and controlled by a first puller and a second puller, respectively. A middle rail is movably and height-adjustably disposed below the upper rail. The middle rail has at least one connecting hole and at least one through hole, the connecting hole providing a connection and fixation for the first rope. A lower rail is movably and height-adjustably disposed below the middle rail. A Roman blind is assembled between the middle rail and the lower rail. A plurality of horizontal bars are arranged equidistantly from top to bottom. Each horizontal bar has at least one buckle. The buckle has a C-shaped buckle portion and can be displaced to snap onto the outer wall of the horizontal bar. The outer wall of the horizontal bar has a positioning rib along the axial direction. The inner wall of the C-shaped buckle portion of the buckle has a positioning groove. The positioning groove engages with the positioning rib to prevent the buckle from rotating on the outer wall of the horizontal bar, thus achieving the through-loop positioning of the buckle and the horizontal bar. The second rope system passes sequentially through the through hole of the middle rail and the buckle, and finally the end of the second rope is connected and fixed to the last buckle in sequence.

2. The dimming Roman blind as described in claim 1, wherein, This Roman blind is an option to choose between a light-transmitting blind and a blackout blind.

3. The dimming Roman blind as described in claim 1, wherein, The horizontal strip is a hollow strip with a C-shaped cross-section, and an opening is formed axially on the wall of the horizontal strip. The diameter of the opening is smaller than the inner diameter of the horizontal strip. Each horizontal strip is fitted with a crossbar, the outer diameter of which is larger than the opening diameter of the horizontal strip. The Roman blind is pressed tightly into the horizontal strip through the crossbar. The two ends of the horizontal strip are fixed by a double-tube plug assembly, which further restricts the crossbar within the horizontal strip. The outer wall of the buckle is formed with a through hole for the second rope to pass through.

4. The dimming Roman blind as described in claim 1, wherein, The lower rail has a groove along the axial direction and an opening at the top of the groove. The groove provides a shaft rod for insertion. The shaft rod has a snap-fit ​​groove along the axial direction. The bottom of the Roman blind has a fixing piece that is embedded in the snap-fit ​​groove of the shaft rod. Then, the Roman blind is rolled around the shaft rod and inserted into the groove along the axial direction. Furthermore, a cover plate is fixed to both the left and right ends of the lower rail.

5. The dimming Roman blind as described in claim 4, wherein, The Roman blind can also wrap around the outer perimeter of the lower track.

6. The dimming Roman blind as described in claim 1, wherein, The upper rail may be equipped with a linkage device and a clutch device. The linkage device is installed between the first rope winder and the second rope winder so that the first and second rope winders can achieve synchronous rope winding through the linkage device. The clutch device is installed on the first rope puller so that the first rope puller and the first rope winder can have disengagement and engagement.

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