A retrofitable retractable screen system for use with windows or doors. Instead of using a spring based tensioning arrangements to rewind the screen onto the roller assembly, the arrangement uses a pulley located on the spindle, around which is wrapped a cord. A guide assembly guides the cord around a tension adjustment arrangement that adjusts the tension in the cord as the screen is wound and unwound from the spindle to provide a smooth mechanism to extend and retract the screen. When the screen is extended, pushing the edge of the screen to force retraction of the screen is translated into a pulling action on the cord to unwind the cord off a pulley, which drives rotation of the spindle to wind the screen back on. Conversely, pulling the distal edge to extend the screen rotates the spindle and pulley to wind the cord back onto the pulley.

This invention relates to an apparatus for vertically closing an opening, the apparatus comprising a fixed element attached to a surface and placed above an opening such as a window, doorway, or the like. The apparatus further comprising a roller connected to said fixed element, a shielding element attached to the roller, the shielding element being adapted to be wound on and unwound from the roller. The apparatus further comprising a number of sensor arrangements and a condition monitoring device configured to receive data from at least one of the number of sensor arrangements and to directly or indirectly compare the data with reference data such that a service need and/or a safety issue can be identified.

This invention relates to an apparatus for vertically closing an opening, the apparatus comprising a fixed element attached to a surface and placed above an opening such as a window, doorway, or the like. The apparatus further comprising a roller connected to said fixed element, a shielding element attached to the roller, the shielding element being adapted to be wound on and unwound from the roller. The apparatus further comprising a number of sensor arrangements and a condition monitoring device configured to receive data from at least one of the number of sensor arrangements and to directly or indirectly compare the data with reference data such that a service need and/or a safety issue can be identified.

The invention relates a double-canvas door; comprising a frame (1) provided with guides (2a, 2b) for moving the canvases (3a, 3b) between door open and closed positions, said canvases defining an intermediate chamber (8) therebetween. The door comprises a single motor-driven roller (6) for the simultaneous winding of both canvases, and a single motor (61) for actuating the roller, the upper ends of the canvases (3a, 3b) being connected to one another and to a band (5) coupled to the winding roller (6), said connection closing the upper end of the intermediate chamber (8) when the door is closed.

A method receives a first image set depicting a merging zone, the first image set including first image(s) associated with a first timestamp; determines, using a trained first machine learning logic, a first state describing a traffic condition of the merging zone at the first timestamp using the first image set; determines, from a sequence of states describing the traffic condition of the merging zone at a sequence of timestamps, using a trained second machine learning logic, second state(s) associated with second timestamp(s) prior to the first timestamp of the first state using a trained backward time distance; computes, using a trained third machine learning logic, impact metric(s) for merging action(s) using the first state, the second state(s), and the merging action(s); selects, from the merging action(s), a first merging action based on the impact metric(s); and provides a merging instruction including the first merging action to a merging vehicle.

An opening/closing direction restriction mechanism for a manual shutter device and an opening/closing direction restriction mechanism for a suspended sliding door device. This opening/closing direction restriction mechanism is provided with: a flange fixedly mounted on a fixed shaft; a bracket which is loosely fitted to the fixed shaft and can be integrally rotated with a winding member; and a two-way clutch which can be switched between a reverse rotation inhibited state in which the revolution of a planetary external gear along a winding direction of the winding member is allowed and the revolution of the planetary external gear along an unwinding direction is inhibited, and a forward rotation inhibited state in which the revolution of the planetary external gear along the winding direction of the winding member is inhibited and the revolution of the planetary external gear along the unwinding direction is allowed.

A flexible panel includes: a plurality of first blades made of semi-rigid material, of rectangular shape, having a pair of long sides and a pair of short sides; a pair of textile membranes which connect each pair of said first blades along said long sides; each of the plurality of first blades include at least one second blade, of quadrilateral shape, connected in a folding manner to one of the short sides, along a line of contact between one of the plurality of first blades and the at least one second blade; when the panel opens it creates vertical tubular hollow areas laterally delimited by the plurality of first blades and by the one pair of textile membranes which joins them.

A flexible panel includes: a plurality of first blades made of semi-rigid material, of rectangular shape, having a pair of long sides and a pair of short sides; a pair of textile membranes which connect each pair of said first blades along said long sides; each of the plurality of first blades include at least one second blade, of quadrilateral shape, connected in a folding manner to one of the short sides, along a line of contact between one of the plurality of first blades and the at least one second blade; when the panel opens it creates vertical tubular hollow areas laterally delimited by the plurality of first blades and by the one pair of textile membranes which joins them.

A planet carrier for supporting at least one planet wheel in a planetary gear for an adjustment unit for adjusting two components adjustable in relation to one another. The planet wheel comprises a planet wheel axle, which has first and second axle portions protruding beyond the planet wheel, and the planet carrier comprises a tubular main body with a passage that penetrates the main body, first and second support portions originating from the passage, where the first and second support portions are designed for the rotational accommodation of the first and the second axle portions. The planet carrier can include protrusions that fix the first and the second axle portions in the support portions.

A window shade includes a top box, a mediate bar, a bottom bar and a shade connected between the mediate bar and the bottom bar. A first scrolling unit and a second scrolling unit are located in the top box, and each are cooperated with a movable unit, a resilient member and a fixed member. The resilient member is connected between the movable unit and the fixed member. Each of the first scrolling unit and the second scrolling unit has a first roller and a second roller, and each of the movable unit has a third roller and a fourth roller. The first cords of the first scrolling unit are connected to the mediate bar. The second cords of the second scrolling unit extend through the mediate bar and are connected to the bottom bar. The first and second cords meet the requirements of a longer shade.