"Side-scrolling shielding for doors or windows frame provided with pleated net and net tensioning wires" * * *

This invention relates to a side-scrolling shielding for doors or windows frame provided with pleated net and net tensioning wires.

In particular, the present invention relates to a side-scrolling shielding for doors or windows frame provided with pleated net and net tensioning wires of the type used for the application of a pleated shield to a door or window compartment.

Different types of shielding or side sliding mosquito nets are known with pleated nets, having a floor guide rail, a box fixed in a vertical position at the top of the compartment to be shielded and in which a shielding material sheet is collected and an upper horizontal guide rail in which the shielding edges are housed in such a way as to prevent shielding' s transverse displacements. In the extraction phase, the net can be extracted laterally by the user, by means of a handle bar, and, during the rewinding phase, the net rewinds quickly pulled by a spring included inside the box. They are also known shielding of the type described having a first handle bar applied to a first end of the net and a second handle bar applied to a second end of the net, each sliding between the lower guide rail and the upper one until it reaches the stop respectively on a first and on a second box.

Recently, those shields have been equipped with net's tensioning wires that facilitate keeping it taut even in the event of wind or sudden opening of the shield. Those wires do not cause any handle bars movement, being solely dedicated to the net tensioning.

However, especially in cases of shielding including two handle bars, there is a need for an effective handle bars movement system which can synchronize the movement during the shielding' s opening and closing.

This invention's purpose is to provide a Side- scrolling shielding for doors or windows frame provided with pleated net and net tensioning wires, of the type comprising two handle bars, able to allow an efficient and synchronized handle bars movement and, moreover, easy to install, and therefore having characteristics such as to overcome the limits which still influence the shielding previously described with reference to the prior art. According to the present invention a sliding shield is provided for frames with pleated net and net's tensioning wires, as defined in claim 1.

For a better understanding of this invention, a preferred embodiment is now described, purely by mean of non-limiting example, with reference to the attached drawings, in which:

- Figure 1 shows a schematic front view of a side- scrolling shielding for doors or windows frame provided with pleated net and net tensioning wires, according to the invention;

- Figures 2A-2C show three-dimensional schematic views of an upper portion of the side-scrolling shielding for doors or windows frame provided with pleated net and net tensioning wires in a closed configuration, according to the invention;

- Figure 3 shows another three-dimensional schematic view of an upper portion of the side-scrolling shielding for doors or windows frame provided with pleated net and net tensioning wires in a closed configuration, according to the invention;

- Figures 4A-4D show three-dimensional schematic views of a lower portion of the side-scrolling shielding for doors or windows frame provided with pleated net and net tensioning wires in a closed configuration, according to the invention;

- Figure 4E shows a perspective schematic view of a lateral upper portion of the side-scrolling shielding for doors or windows frame provided with pleated net and net tensioning wires in a closed configuration, according to the invention;

- Figure 5 shows a schematic front view of a side- scrolling shielding for doors or windows frame provided with pleated net and net tensioning wires in an open configuration, according to the invention.

With reference to those figures, a side-scrolling shielding for doors or windows frame provided with pleated net and net tensioning wires, according to the invention, is shown.

In particular, Figure 1 shows a side-scrolling shielding 100 for doors or windows frame provided with pleated net and net tensioning wires including: a first closure vertical profile 101a fixed to a window frame or shutter vertical wall, for example of a window, to which the shielding is applied and a second closure vertical profile 101b fixed to the window frame or shutter opposite means vertical wall; a first pleated net 102a having a first end hooked to the first closure vertical profile 101a and a second pleated net 102b having a first end hooked to the second closure vertical profile 101b; an upper fixed guide 103 and a lower fixed guide 104; a first handle bar 105a sliding between the upper fixed guide 103 and the lower fixed guide 104 and hooked to a second end of the first pleated net 102a; and a second handle bar 105b sliding between the upper fixed guide 103 and the lower fixed guide 104 and hooked to a second end of the second pleated net 102b. More clearly, the handle bars 105a and 105b allow the user to move sideways the first pleated net 102a and the second one 102b, or to extend them, bringing the handle bars 105a and 105b in contact with each other, as shown in Figures 2A-2C, or to close them again, by stopping the first handle bar 105a abutting against the first closure vertical profile 101a and the second handle bar 105b abutting against the second closure vertical profile 101b, as shown clearly in figures 3 and 5.

Furthermore, the side-scrolling shielding 100 includes tensioning wires of the pleated nets 102a and 102b. More specifically, according to an aspect of the invention, the shield comprises four tensioning wires 106, 107, 108 and 109 anchored to the first vertical profile 101a in predefined points A, B, C, D. respectively. The tensioning wires 106 and 108, starting from the points A and C, go through the first pleated net 102a, go down inside the first handle bar 105a and go through a hole 105aa of a lower head 116c of the first handle bar 105a. Subsequently the tensioning wires 106 and 108 go through a hole 105ba of a lower head 116d of the second handle bar 105b, go back inside it and head, through the second pleated net 102b, respectively towards points A 'and C the second vertical profile 101b at a height corresponding to that of points A and C. Instead, the tensioning wires 107 and 109, departing from points B and D, go through the first pleated net 102a, rise inside the first handle bar 105a and pass to the inside a hole 105ab of an upper head 116a of the first handle bar 105a. Subsequently the tensioning wires 107 and 109 go through a hole 105bb of an upper head 116b of the second handle bar 105b, go down inside it and head, through the second pleated net 102b, respectively towards points B 'and D' of the second vertical profile 101b at a height corresponding to that of points B and D.

Instead, the first vertical profile 101a includes an upper head 115a and a lower one 115c whereas, as shown in Figures 3 and 4A, the second vertical profile 101b includes an upper head 115b and a lower head 115d.

The side-scrolling shielding 100 further includes a first and a second upper wire 110 and 111 and a first and a second lower wires 112 and 113 for moving and synchronizing the handle bars 105a and 105b. As shown in FIGS. 2A-2C, the upper head 116a of the first handle bar 105a has a lateral excavation 118a communicating with an upper slot 117a and comprising a wedge-shaped protrusion 119a leaving a first lateral slot 117aa and a second lateral slot 117ab communicating with the upper slot 117a. Inside the excavation 118a there is fixed a screw 120a to which the first upper wire 110 is constrained. From here, the first upper wire 110 is guided from the first slot 117aa in the upper slot 117a, extending along the upper edge of the first the first pleated net 102a, inside the upper fixed guide 103, wraps around a first spool 114a inserted inside the upper head 115a of the first vertical profile 101a and retracing the upper edge of the first pleated net 102a, in the opposite means direction, inside the upper fixed guide 103, goes towards the upper head 116b of the second handle bar 105b.

The upper head 116b mounted mirrored with respect to the head 116a has, as shown in Figures 2C and 3, a lateral excavation 118b communicating with an upper slot 117b and comprising a wedge-shaped protrusion 119b leaving a first lateral opening 117ba and a second lateral slot 117bb communicating with the upper slot 117b. Inside the excavation 118b there is fixed a screw 120b to which is fixed the first upper wire 110 of movement coming from the first vertical profile 101a is constrained. The second upper wire 111 is wound to the screw 120a, which, passing through the second lateral slot 117ab of the first upper head 116a, enters the upper slot 117a and goes into the upper slot 117b of the upper head 116b of the second handle bar 105b. The second upper wire 111 is guided from the upper slot 117b to extend along the upper edge of the second pleated net 102b internally to the upper fixed guide 103, to wind onto a third spool 114b inserted into the upper head 115b of the second vertical profile 101b and retracing the edge in the opposite means direction upper part of the second pleated net 102b, inside the upper fixed guide 103, goes towards the upper head 116a of the first handle bar 105a where it is constrained to the screw 120a.

According to a feature of the invention, both the upper head 115a of the first vertical profile 101a, and the upper head 115b of the second vertical profile 101b include, in a previous position adjacent to the spool 114a or 114b, a guide means 121a or 121b, as shown in Figures 2A and 3.

In a mirroring way, according to a feature of the invention, as shown in Figures 4A and 4B, the lower head 116c has a excavation 118c communicating with an upper slot 117c and including a wedge-shaped protrusion 119c leaving a first lateral slot 117ca and a second lateral slot 117cb communicating with the upper slot 117c and below which a screw 120c is fixed to which the first lower wire 112 is constrained. From here, the first lower wire 112 is guided by the first lateral slot 117ca in the upper slot 117c, extends along the lower edge of the first pleated net 102a, inside the lower fixed guide 104, wraps around a second spool 114c inserted inside the lower head 115c of the first vertical profile 101a and retracing the lower edge in the opposite means direction the first pleated net 102a, inside the lower fixed guide 104, goes towards the lower head 116d of the second handle bar 105b.

The lower head 116d of the second handle bar 105b mounted opposite means to that of the head 116c, has an excavation 118d communicating with an upper slot 117d and including a wedge-shaped protrusion 119d leaving a first lateral opening 117da and a second lateral opening 117db communicating with the upper cove 117d. Inside the excavation 118d a screw 120d is fixed to which the first lower wire 112 is constrained.

A second lower movement wire 113 is wound to the screw 120c, passing through the second lateral slot 117b of the lower head 116c into the upper slot 117c and passing into the upper slot 117d of the lower head 116d of the second handle bar 105b. The second lower wire 113 is guided from the upper slot 117d, as shown in Figures 4C and 4D, to extend along the lower edge of the second pleated net 102b inside the lower fixed guide 104, to wind onto a fourth spool 114d inserted in the lower head 115d of the second vertical profile 101b, and retracing the lower edge of the second pleated net 102b, in the opposite means direction, inside the lower fixed guide 104, goes towards the lower head 116c of the first handle bar 105a where it is constrained to the screw 120c.

According to a feature of the invention, both the lower head 115c of the first vertical profile 101a, and the lower head 115d of the second vertical profile 101b include, in a previous position adjacent to the spool 114c or 114d, a guide means 121c or 121d.

Moreover, according to a feature of the invention, the side-scrolling shielding 100 includes male engagement means 122 which can be installed on the frame which allow quick coupling of the vertical profiles 105a and 105b, as shown in Figure 4E.

In use, assuming to close the side-scrolling shielding 100 starting from the open configuration of Figure 5, the user can simply operate a single handle bar, for example the first handle bar 105a, and bring it into abutment with the other handle bar 105b, but without operating this. In fact, through the movement wires 110-113, the synchronized movement of both the handle bars 105a and 105b is obtained. At each movement of the first handle bar 105a, the same displacement of the second handle bar 105b matches, and vice versa.

During the movement, both the pleated nets 102a and 102b extend respectively between the first vertical profile 101a and the first handle bar 105a, and between the second vertical profile 101b and the second handle bar 105b while remaining in tension.

Advantageously according to the invention, the tensioning wires 106-109 are always in tension, regardless of the closed or open configuration of the side-scrolling shielding 100.

Therefore, the sliding screen for windows with pleated net and net's tensioning wires according to the invention allows tensioning the pleated net and simultaneously moving the handle bars in a synchronized way.

Another advantage of the Side-scrolling shielding for doors or windows frame provided with pleated net and net tensioning wires according to the invention consists in the fact that the assembly it's eased.

Finally, the sliding screen for window frames with pleated net and net's tensioning wires according to the invention is easily adaptable to existing and low-cost profiles .

Finally, it is clear that modifications and variations can be made to the sliding screen for window frames with pleated net and net's tensioning wires described and illustrated herein without differing from the scope of the present invention, as defined in the attached claims.