Hunter Douglas Industries B.v.

Jorg Bohlen

Lars Koop

Konrad Welfonder

Tomas M A H Garmyn

Johann Rouben Reinier Ticoalu

Johann Rouben Ticoalu

The invention relates to a mounting system for an architectural covering comprising a roller and a bearing for rotatably mounting the roller to a holding member. The bearing comprises a length variation member which is biased to be in a first state yielding a bearing length which allows the roller to be held by the holding member, and which can be manipulated into a second state, in which the bearing length is reduced such that the roller is removable from the holding member. The length variation member comprises at least one sloped portion that extends along at least part of its outer circumference and in the first state extends largely or completely outside the roller. The sloped portion is dimensioned such that the length variation member can be urged to the second state by applying a force on the sloped portion in a single direction.

Mounting system for an architectural covering and an end bearing for the mounting system

The invention relates to a shading device for an architectural opening comprising a shade, a drive unit for extending and retracting the shade between a first and second end position, a spindle, a first end stop, stationary connected to the spindle near a first end of the spindle and at least one travelling nut, movably arranged on the spindle and operatively connected to the drive unit so as to move towards, respectively away from the first end stop as the shade is extended, respectively retracted. The travelling nut is articulated in circumferential direction into segments, with at least two segments being detachably connectable to each other at one of their ends.

Shading device for an architectural opening and method for adjusting an end stop position of the shading device

A roller shade including a flexible sheet member having opposite parallel first and second edges, and a roller shaft rotatable in each of two opposite directions of rotation. The flexible sheet member being attached along its first edge to the roller shaft, while the second edge of the flexible sheet member is freely depending from the roller shaft. The roller shade further comprises a counterbalancing device for balancing a portion of the flexible sheet member that is unwound from the roller shaft. This counterbalancing device has means for storing a variable torque that is complementary to a variable weight of the portion of flexible sheet member that is depending from the roller shaft. The means for storing variable torque includes a helically wound tension spring operatively interposed between a stationary central rod and the roller shaft.

Roller shade with a counterbalancing device

A method of selecting one or more springs for a roller blind is provided. The method may include determining one or more parameters of the blind, determining a torque curve of the blind based on the one or more parameters of the blind, and selecting one or more springs having a wire diameter and a spring diameter. The method may further include determining a length of the one or more springs based on the torque curve, the wire diameter of the one or more springs, and the spring diameter of the one or more springs to ensure the blind operates with a constant operating force.

Spring system for roller blinds

A spring assist module for window covering includes a stationary member, at least one torsion spring, and at least one rotatable member. The stationary member may be connectable to an operating member of the window covering. The at least one rotatable member may be keyable to a driven part of the window covering, such that rotation of the driven part rotates the at least one rotatable member. The at least one torsion spring may include a first end operatively coupled to the stationary member and a second end operatively coupled to the at least one rotatable member. The spring assist module may be pre-assembled as a self-contained unit.

An architectural covering having a drive mechanism for extending and retracting a covering member between opposite first and second end positions. The drive mechanism includes an electric motor unit having a stationary end and a rotating end for rotating a winding core, such as a roller blind shaft, for receiving wound layers of a flexible element, such as a sheet of flexible material thereon. The drive mechanism further includes a motor head, separate from the electric motor unit, providing external electrical control for the motor unit via an electrical interface. A printed circuit board accommodated in the motor head may include at least one of end position limit switches, a switch for setting the first and second end positions, electronic communication means, or a remote control receiver. The electrical interface may include an electrical connector plug, an electrical socket, and/or an electrical cable.

Architectural covering having a drive mechanism

A winding shaft drive (A,A,A) is arranged for operating a retractable covering for an architectural opening. The winding shaft drive includes an at least partially hollow winding shaft (); a driving member () for inducing rotation to the winding shaft; and a shaft brake adapted to be operated by the driving member. The shaft brake includes a preassembled module () for accommodation in the at least partially hollow winding shaft () and has first coupling means () on one axial end thereof for transmitting rotative forces and second coupling means () on the same one axial end for transmitting non-rotative stationary forces. The driving member has a driving hub () for removably coupling to the first coupling means () and a stationary connector (A,A) for removably coupling to the second coupling means (). A shaft brake module () and a driving member () are specifically adapted for use in the winding shaft drive.

Winding shaft drive for operating a retractable architectural covering and shaft brake module for use therein

A architectural covering, such as a shutter, blind or shade, comprising a control unit for controlling a motor so as to adjust the position of the architectural covering, wherein the control unit includes a housing and a circuit means, which is provided with switching means which upon actuation allow for the setting of at least one position of the architectural covering in the circuit means. The housing includes a tool receiving section for releasable engagement with a tool for actuating the switching means.

Architectural covering and method of setting at least one position of the architectural covering

The present invention relates to end stops for use in retractable coverings for architectural openings where the end stops have impact-absorbing means which are bi-directionally cushioning. The end stop will remain at a dedicated position even after being impacted.

Covering for an architectural opening

A motorized blind having a pull cord. The pull cord is mechanically connected to an electrical switch in a headrail of the blind, the switch being electrically connected to an electric motor within the headrail. The pull cord also extends outwardly of an end of the headrail and then outwardly and downwardly of the blind through a hole in the front of an end cap on the headrail.

Pull cord on headrail for operating a motorized blind

The invention relates to an operating unit () for architectural coverings, in particular roller blinds or shades. The unit () includes a stationary base member (), a rotatable driving member (), a rotatable driven member () and a brake mechanism (, and). The brake mechanism (, and) automatically arrests rotation of the driven member () in respect of the stationary base member (), when not rotated by the driving member (). The brake mechanism includes a first wrap spring (), adapted to yield a predetermined minimum brake force, and at least one second wrap spring (), different in size from the first wrap spring () and adapted to yield a supplementary brake force, which together with the predetermined minimum brake force amounts to a predetermined maximum brake force.

Operating unit for architectural coverings

A roller blind including a roller of having a roller length and a roller outer diameter, a fabric attached to said roller for winding and unwinding from said roller. The fabric has a fabric length, a fabric weight, a fabric height, and fabric thickness. The blind includes a bottom bar having a bottom bar weight, and at least one spring operatively connected to the roller to drivingly rotate the roller in at least one direction of rotation. The spring is selected according to a Protocol such that it's length ensures that it drives the roller with a constant operating force.

An architectural covering arrangement having two side rails for mounting in parallel either side of a window pane and at least one movable end rail for mounting perpendicular to the side rails and extending from one side rail to the other side rail, the side rails having on respective faces to be mounted on a window pane, a two-layer fastening structure with one of the layers adhered to the respective side rail and the other of the two layers to be adhered to the window pane, the two layers being freely attachable and detachable from one another.

Growing community of inventors

Langen, Germany

Jorg Bohlen