A sheet material arrangement having a flexible primary sheet material and an edge member with two legs pivotably connected together. The first leg has two outer portions of a band-shaped secondary sheet material and is connected to the primary sheet material along an edge portion. A central portion of the secondary sheet material is looped around an insert transversely to the longitudinal direction of said secondary sheet material and, together with this insert, forms a second leg which is connected to the first leg so as to be pivotable about a pivot axis. In a pivoting position, with the legs arranged approximately parallel, the edge member and the sheet material can be rolled up on a winding shaft. In a further pivoting position, the legs form an angle of inclination different than 0°, with the result that the second leg is useable for guided displacement in a guide rail.

Wheel carriage assemblies and related fabric deployment systems and methods are disclosed. A wheel carriage assembly comprising at least one wheel with ball bearings on the interior of each wheel, and a pivot point that allows for position independence, is configured with a hembar coupled to a piece of fabric to allow a surface of varying shape to be covered. The system provides the ability to cover both traditional window shapes as well as surfaces of irregular shape or inclined orientation, and reduces and evens the amount of wear on certain components to extend system life.

A magnetic track assembly including an elongate channel having an open side, an end wall, and two parallel side walls; a first magnet disposed within the elongate channel near an interior side of the end wall; a compartment defined within the elongate channel spaced from the first magnet; and a screen receiver disposed within the compartment and including a second magnet arranged facing the first magnet. In the magnetic track assembly, the first and second magnets are of opposite polarity and the screen receiver is loosely disposed within the compartment such that a magnetic bond is intact between the first and second magnets when the first and second magnets are close together and the magnetic bond is broken when the first and second magnets are pulled apart.

A shielding device for opening and closing a shielding member by rotation of a winding shaft, the shielding device including a speed controller configured to control an automatic movement speed of the shielding member, wherein the speed controller includes: a housing containing a viscous fluid; and a moving member contained in the housing and configured to move by rotation of the winding shaft, and the speed controller is configured so that resistance the moving member receives from the viscous fluid varies with movement of the moving member, is provided.

A lining is provided that covers doors or windows to provide protection against all inclement weather conditions. The lining prevents sunlight or any other type light from entering inside a room. The lining that includes horizontal slotted blinds that are operated manually using a flat cord. The horizontal slotted blinds work using tongue and groove concept.

An open roof construction for a vehicle comprises a rollo assembly. The rollo assembly comprises a rollo screen and a winding shaft for the rollo screen which is rotatable around a stationary axis of rotation. The rollo screen firstly extends in a first direction, next around a reversal member and finally back in an opposite second direction and ends at a rollo screen edge which is attached to a stationary member. The rollo screen has two longitudinal edges which, when the rollo screen is wound off, are brought into engagement with holding members. The longitudinal edges of the rollo screen each comprise a hooking member insertable into a holding groove and hook behind a narrow entrance thereof. A reversal member is provided with a device acting on at least one of the hooking member and holding groove to enable the hooking member to enter and exit the holding groove.

A retractable privacy system for roll-up walls and doors is disclosed. In one embodiment, such a retractable privacy system includes one or more drums rotated by one or more motors to draw in or let out one or more flexible sheets from the drum. Multiple motors and drums may work in synchronization to achieve a desired result. In certain embodiments, various inputs are used to automatically open or close roll-up walls and doors. In other embodiments, the retractable privacy system interfaces with a thermostat or security system to achieve a desired result.

A retractable privacy system for is disclosed. In one embodiment, such a retractable privacy system includes a drums rotated by one or more motors to draw-in or let-out a flexible sheet from a drum. Multiple motors may work in synchronization to achieve a desired result. In certain embodiments, various inputs are used to automatically open or close privacy sheets. In other embodiments, the retractable privacy system interfaces with a thermostat or security system to achieve a desired result.

Wheel carriage assemblies and related fabric deployment systems and methods are disclosed. A wheel carriage assembly comprising at least one wheel with ball bearings on the interior of each wheel, and a pivot point that allows for position independence, is configured with a hembar coupled to a piece of fabric to allow a surface of varying shape to be covered. The system provides the ability to cover both traditional window shapes as well as surfaces of irregular shape or inclined orientation, and reduces and evens the amount of wear on certain components to extend system life.

The disclosure discloses a return device and a windproof roller shutter formed by the return device. The return device includes an end cover, wherein a sliding chute is arranged on the end cover, the sliding chute is arranged slantly, and a horizontal height of a first end of the sliding chute is larger than a horizontal height of a second end of the sliding chute; a sliding component, wherein the sliding component moves along the sliding chute; and a fixed plate mounted at one end of a reel pipe, wherein the sliding component is mounted on the fixed plate. The windproof roller shutter includes a reel pipe, a shutter body, a low rail, two side rails and two return devices.