Rollo assembly

Patent metadata

Field	Value
Publication number	US-10017034-B2
Application number	US-201514952561-A
Country	US
Kind code	B2
Filing date	Nov 25, 2015
Priority date	Dec 1, 2014
Publication date	Jul 10, 2018
Grant date	Jul 10, 2018

Abstract

A rollo assembly comprises a flexible rollo screen, a rotatable winding shaft to which a first end of the rollo screen is attached for being wound on or off said winding shaft and two opposite longitudinal guides extending in a longitudinal direction perpendicularly to the winding shaft for guiding opposite sides of the rollo screen. The rollo screen further is provided with longitudinally spaced elongate stiffeners extending substantially in a transverse direction in parallel to the winding shaft between the opposite sides of the rollo screen and attached to the flexible rollo screen, which stiffeners are biased for assuming a curved shape in said transverse direction. Each stiffener comprises two stiffener parts which comprise facing edges and wherein each stiffener further comprises a hinge member extending in said transverse direction and joining said facing edges.

First claim

The invention claimed is:

1. A rollo assembly, comprising a flexible rollo screen, a rotatable winding shaft to which a first end of the rollo screen is attached for being wound on or off said winding shaft, and two opposite longitudinal guides extending in a longitudinal direction perpendicularly to the winding shaft configured to guide opposite sides of the rollo screen, wherein the rollo screen further is provided with longitudinally spaced elongate stiffeners extending substantially in a transverse direction in parallel to the winding shaft between the opposite sides of the rollo screen and attached to the flexible rollo screen, which stiffeners are biased for assuming a curved shape in said transverse direction, wherein each stiffener comprises two stiffener parts which comprise facing edges and wherein each stiffener further comprises a hinge member extending along a hinge axis, with at least one specific location, the hinge member extending continuously in said transverse direction between the opposite sides of the rollo screen and joining said facing edges, to define a continuous at least one hinge axis.

2. The rollo assembly according to claim 1 , wherein the stiffener parts also are curved in said longitudinal direction.

3. The rollo assembly according to claim 2 , wherein the stiffener parts have a curvature in said longitudinal direction with such an orientation and with such a radius of curvature that the stiffener parts closely conform to an effective outer curved shape of the winding shaft when wound thereon.

4. The rollo assembly according to claim 1 , wherein the hinge member comprises a central hinge body and two spaced hinge axes each defining a hinged connection between the central hinge body and a corresponding one of the stiffener parts.

5. The rollo assembly according to claim 1 , wherein the two stiffener parts are integrally interconnected by an interconnecting part and wherein in said interconnecting part at least one living hinge is defined for realizing a hinged connection.

6. The rollo assembly according to claim 1 , wherein the stiffener parts have free edges remote from their facing edges, the free edges spaced apart from the rollo screen in a position in which said stiffener parts are not wound onto the winding shaft.

7. The rollo assembly according to claim 1 , wherein at least one of the two stiffener parts and the hinge member is attached to the rollo screen.

8. The rollo assembly according to claim 1 , wherein the stiffener parts of a stiffener each are received in one of a pair of pockets provided on the rollo screen, wherein the pockets are defined by a flexible cloth part connected to the rollo screen and wherein said cloth part comprises a central cloth part located between adjacent stiffener parts and attached to the rollo screen, which central cloth part is sufficiently stiff to prevent a substantial collapse of said cloth part in the longitudinal direction.

9. The rollo assembly according to claim 1 , wherein the flexible rollo screen at each stiffener is divided into two adjacent rollo screen parts each having edge parts which are folded back and connected to each other at respective folding lines extending in the transverse direction and which are attached to corresponding ones of the stiffener parts and wherein the hinge member is defined by said folding lines.

10. The rollo assembly according to claim 1 , wherein each stiffener part at its opposite ends is provided with slide shoes for cooperation with the respective longitudinal guides.

11. The rollo assembly according to claim 10 , wherein the slide shoes of two stiffener parts of the same stiffener that cooperate with the same longitudinal guide are interconnected by a hinge which is located substantially in line with the hinge member joining said stiffener parts.

12. The rollo assembly according to claim 1 , wherein the stiffener parts have at least one of the following configurations: a profiled member, a hollow member, a member made of a single material, a member made of at least two materials, a metal member, a plastic member.

13. The rollo assembly according to claim 1 , wherein the elongate stiffeners are attached to the flexible rollo screen by any of the following methods: gluing, stitching, welding, molding.

14. The rollo assembly according to claim 1 , wherein the flexible rollo screen comprises a main layer substantially defining mechanical characteristics of the rollo screen and having a surface to which the stiffeners are attached, and an optical layer attached to an opposite surface of said main layer.

15. A rollo assembly, comprising a flexible rollo screen, a rotatable winding shaft to which a first end of the rollo screen is attached for being wound on or off said winding shaft, and two opposite longitudinal guides extending in a longitudinal direction perpendicularly to the winding shaft configured to guide opposite sides of the rollo screen, wherein the rollo screen further is provided with longitudinally spaced elongate stiffeners extending substantially in a transverse direction in parallel to the winding shaft and between the opposite sides of the rollo screen and attached to the flexible rollo screen, which stiffeners are biased for assuming a curved shape in said transverse direction, wherein each stiffener comprises two stiffener parts which comprise facing edges and wherein each stiffener further comprises a hinge member having a hinge axis, with a specific location, extending continuously in said transverse direction between the opposite sides of the rollo screen and joining said facing edges to define a continuous hinge axis, wherein the stiffener parts also are curved in said longitudinal direction, and wherein the curvature in said longitudinal direction is at such an orientation and with such a radius of curvature that the stiffener parts closely conform to an effective outer curved shape of the winding shaft when wound thereon.

16. A rollo assembly, comprising a flexible rollo screen, a rotatable winding shaft to which a first end of the rollo screen is attached for being wound on or off said winding shaft, and two opposite longitudinal guides extending in a longitudinal direction perpendicularly to the winding shaft configured to guide opposite sides of the rollo screen, wherein the rollo screen further is provided with longitudinally spaced elongate stiffeners extending substantially in a transverse direction in parallel to the winding shaft between the opposite sides of the rollo screen and attached to the flexible rollo screen, which stiffeners are biased for assuming a curved shape in said transverse direction, wherein each stiffener comprises two stiffener parts which comprise facing edges and wherein each stiffener further comprises a hinge member extending in said transverse direction along a continuous hinge axis between the two opposite longitudinal guides and joining said facing edges, wherein the stiffener parts have a curvature in said longitudinal direction with such an orientation and with such a radius of curvature that the stiffener parts closely conform to an effective outer curved shape of the winding shaft when wound thereon.

Assignees

• Inalfa Roof Sys Group Bv

Inventors

• Van Boxtel Eduardus Christianus Henricus

Classifications

• B60J1/2041

  Blind sheets, e.g. shape of sheets, reinforcements in sheets, materials therefor · CPC title

• B60J7/0015 Primary

  roller blind · CPC title

• B60J7/067 Primary

  sliding and winding up · CPC title

• B60J7/0023

  flexible and foldable · CPC title