A window includes a window frame and a screen mounting assembly. The window frame is formed with two rail slots. The screen mounting assembly is adapted to be connected to a window screen and includes a roller unit, a sliding unit and an interconnecting unit. The roller unit includes a roller seat. The sliding unit is slidable along the rail slots and defines an engaging groove. The interconnecting unit is operable between a disengaging state where the interconnecting unit is connected to the roller seat, and an engaging state where the interconnecting unit is separated from the roller seat and inserted into the engaging groove so as to engage the sliding unit, such that movement of the sliding unit along the rail slots results in winding and unwinding of the window screen.

A brake arrangement, for a retractable screen arrangement in which the a screen roller applies a retraction force to the screen and brake arrangement, includes a brake arrangement, for providing a braking force between the brake arrangement and a track which guides the brake arrangement, to resist retraction. The brake arrangement provides a brake member with a friction surface for contacting the bearing surface; a brake member support for supporting the brake member; and a forcing arrangement for forcing the friction surface against the bearing surface. The forcing arrangement includes a biasing arrangement for biasing the friction surface onto the bearing surface, and a force-increasing arrangement for increasing the force with which the friction surface engages the bearing surface. The force increasing arrangement converts a frictional force between the friction surface and the track into additional contact pressure force of the friction surface onto the guide track.

The present invention relates to a system for guiding a flexible curtain for at least partially closing an opening.

A mosquito net of a compartment of an access of a vehicle with a floor and a riser includes a frame and a curtain connected to the frame. The frame includes a first vertical upright, a top rail and a bottom rail configured to be secured to the vehicle, and a second upright free to slide on the top rail and bottom rail.

The system has a pleated net run by ropes that begin from the same side of the retention case, cross the net and continue upwards to all upper fixed horizontal guide, and are fastened at the upper part of the system. This invention uses wire rope which has one edge fastened at the upper truck, passes horizontally above the net, then parses through the pulley at the upper part of the sliding case, follows a vertical course towards the second pulley at the lower part of the sliding guide, crosses the lower fixed horizontal guide and is fastened on the lower part of the vertical fixed side guide. In case of a system with two or more leaves, this invention uses a ropes' central end component, tension adjusters and a ropes' run component.

An insect net with emergency deployment structured to be retrofit onto the roof of the cab of the typical construction or agricultural equipment vehicle. The system includes a cylindrical insect net that may be compressed into a closed deployment box positioned on the underside of the vehicle cab roof. A deployment cord is positioned adjacent the operator where it may be readily accessed and pulled to open the doors of the deployment box to allow the cylindrical net to drop (under the influence of a ring of small weights) to surround the operator within the cab. The system is structured to be re-used by replacing the cylindrical net back into the deployment box and refitting the deployment cord with pull pin to hold the deployable components within the box for subsequent use.

A screen device includes a screen retaining member defined by needle-shaped parts attached, in intervals, to a longitudinal base part which is bendable in a pivotally movable direction of each of plural guide units. In an attached condition of the screen retaining member, the longitudinal base part is supported between a rail part and a supporting piece of each of the guide units and all of the needle-shaped parts protrude inwardly between opposing side walls of each of the guide units.

A flexible screen material can be cut out of square, or part of the screen frame can be formed out of square such that when the screen is fitted to the screen frame, there is less sagging.

A braking device for an automatic winding type screen device that stably brakes the automatic winding of a screen regardless of the temperature. The braking device comprises: a housing that is provided inside a winding shaft so as to be able to turn with the winding shaft to wind up a screen; a sleeve that is inserted into the housing and is mounted to a bracket so as not to be able to turn; and a mobile element that can rotate with the housing. A first spring and a second spring are provided on the outer side of the sleeve so as to have the mobile element therebetween. The mobile element twists forward on the sleeve along with rotation of the housing, and biasing forces of the first spring and the second spring that expand and contact with the forward twist of the mobile element brakes the rotation of the winding shaft.

In a screen device, a screen retaining member formed by detachably attaching a plurality of needle-like parts in intervals to a longitudinal base part which is bendable in a pivotally moving direction of each of the first guide units, and in an attached condition of the screen retaining member, the base part is supported between the rail part and the supporting piece of each of the first guide units and all of the needle-like parts protrude inwardly between opposing side walls of each of the first guide units.