Corrugated insect net for greenhouse ventilation window and greenhouse

Abstract

A corrugated insect net for a ventilation window of a greenhouse has a folded state in which the insect net is compressed and an unfolded state in which the insect net forms at least a first wall and a second wall, the first wall and the second wall being angled to each other and meeting at corner portions, thereby forming an inner side and an outer side of the insect net. The insect net includes a plurality of corrugated segments, where each corrugated segment has a first corrugated segment portion and a second corrugated segment portion that are secured to each other at one of an inner side and an outer side to form a bend and overlap each other in a folded state. The first corrugated segment portion includes a first strip and a second strip that are secured to each other by a first seam. The second corrugated segment portion includes a first strip and a second strip that are secured to each other by a second seam. The first seam and the second seam have different positions at the corner portion when viewed from a direction perpendicular to a plane where the corrugated section is located in a folded state of the insect net.

Description

Technical Field

[0001] The present invention relates to a corrugated insect net for greenhouse ventilation windows, which has a folded state and an unfolded state, in which the insect net is compressed in the folded state, and in which the insect net forms at least a first wall and a second wall in the unfolded state, the first wall and the first wall are angled with each other and meet at a corner portion, thereby forming an inner side and an outer side of the insect net, wherein the insect net includes a plurality of corrugated segments, wherein each corrugated segment has a first corrugated segment portion and a second corrugated segment portion, which are fixed to each other at one of the inner side and the outer side to form a bend (plie) and overlap each other in the folded state, wherein the first corrugated segment portion includes a first strip along the first wall and a second strip along the second wall, the first strip and the second strip are fixed to each other by a first seam at a common edge of the first strip and the second strip facing each other at a corner portion of the first corrugated segment portion, and the second corrugated segment portion includes a first strip along the first wall and a second strip along the second wall, the first strip and the second strip are fixed to each other by a second seam at a common edge of the first strip and the second strip facing each other at a corner portion of the second corrugated segment portion. Background Art

[0002] Such an insect net is known from WO 2022 / 245215. In the unfolded state, the known insect net comprises a front panel which merges into two side panels. The side panels have the shape of a circular cross section. The insect net comprises a plurality of U-shaped corrugated segments, wherein each of the corrugated segments has two parallel side corrugated portions at the corresponding side panels and a front corrugated portion at the front panel. Each of the side corrugated portions comprises a first side gauze and a second side gauze which are connected to each other at their longitudinal sides and each have a short side. The front corrugated portion comprises a first front gauze and a second front gauze which are connected to each other at their longitudinal sides. The short sides of the first side gauze and the second side gauze are respectively connected to the longitudinal sides of the first front gauze and the second front gauze. Summary of the invention

[0003] An object of the present invention is to provide an improved corrugated insect net.

[0004] This object is achieved by the insect net according to the invention, wherein the first seam and the second seam have different positions at the corner portions, viewed perpendicularly to the plane in which the corrugated segments lie in the folded state of the insect net.

[0005] An advantage of the insect net according to the invention is that, due to the offset of the first seam and the second seam relative to each other, the thickness of the corrugated section in the corner portion is minimized in the folded state. This results in the insect net being relatively flat packed in the folded state.

[0006] The fact that the first strip and the second strip of the first corrugated segment portion are fixed to each other by a first seam at a common edge of the first strip and the second strip of the first corrugated segment portion facing each other at a corner portion means that the overlap of the first strip and the second strip of the first corrugated segment portion is minimized. Likewise, the fact that the first strip and the second strip of the second corrugated segment portion are fixed to each other by a second seam at a common edge of the first strip and the second strip of the second corrugated segment portion facing each other at a corner portion means that the overlap of the first strip and the second strip of the second corrugated segment portion is minimized. The first seam may be a single seam between the first strip and the second strip of the first corrugated segment portion, and the second seam may be a single seam between the first strip and the second strip of the second corrugated segment portion.

[0007] In one embodiment, the first seam and the second seam are angled with respect to each other at the corner portion, viewed in a direction perpendicular to a plane in which the corrugated segments lie in the folded state of the insect net.

[0008] The first wall and the second wall may be substantially perpendicular to each other. This means that the first strip and the second strip of the first corrugation segment portion are substantially perpendicular to each other and the first strip and the second strip of the second corrugation segment portion are substantially perpendicular to each other.

[0009] In one embodiment, at a corner portion, the transverse ends of the first strip of the first corrugated segment portion are fixed to the longitudinal sides of the second strip of the first corrugated segment portion, wherein at the corner portion, the transverse ends of the second strip of the second corrugated segment portion are fixed to the longitudinal sides of the first strip of the second corrugated segment portion. The transverse ends of the first strip of the first corrugated segment portion may be perpendicular to the longitudinal direction of the first strip of the first corrugated segment portion and parallel to the longitudinal sides of the second strip of the first corrugated segment portion, while the transverse ends of the second strip of the second corrugated segment portion may be perpendicular to the longitudinal direction of the second strip of the first corrugated segment portion and parallel to the longitudinal sides of the first strip of the second corrugated segment portion. The first strip and the second strip of the first corrugated segment portion and the second corrugated segment portion may be rectangular. The first seam and the second seam may be perpendicular to each other, viewed from a direction perpendicular to the plane in which the corrugated segments are located in the folded state of the insect net.

[0010] In a specific embodiment, the first corrugated section portion is a lower corrugated section portion and the second corrugated section portion is an upper corrugated section portion extending above the lower corrugated section portion, wherein the first strip of the upper corrugated section portion extends above the ends of the first strip of the lower corrugated section portion and the second strip of the lower corrugated section portion, and the second strip of the lower bellows section extends below the ends of the second strip of the upper corrugated section portion and the first strip of the upper corrugated section portion. In this embodiment, the first corrugated section portion and the second corrugated section portion are stacked on top of each other. The first plate and the second plate may extend in an upward direction.

[0011] The insect net may be fused, sewn or adhered at the first seam and the second seam.

[0012] The first corrugated segment portion and the second corrugated segment portion may be fused, sewn or adhered to each other at one of the inner side and the outer side.

[0013] The first and second strips of the first and second corrugated section portions are elongated pieces, preferably made of fine mesh.

[0014] In a particular embodiment, the corrugated segments are U-shaped so that the insect net can be used at a sloping window. The U-shape can fit the three free edges of a rectangular sloping window.

[0015] The present invention also relates to a greenhouse comprising a sloping roof, the roof comprising an opening and a ventilation window, the ventilation window being rotatable between a closed state and an open state, wherein the ventilation window covers the opening in the closed state and the opening forms a ventilation channel in the open state, wherein the greenhouse further comprises an insect net as described above, which is mounted on the ventilation window and on the peripheral edge around the opening. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The invention will be explained hereinafter with reference to very diagrammatic drawings which show embodiments of the invention by way of example.

[0017] Figure 1 is a perspective view of a portion of an embodiment of a greenhouse comprising an insect net according to the invention.

[0018] Figure 2 yes Figure 1 A panning view of a portion of the lower corrugated segment portion of an insect net.

[0019] Figure 3 is with Figure 2 Similar view, but showing Figure 1 A portion of the upper corrugated section of an insect net.

[0020] Figure 4 yes Figure 1 A perspective view of a portion of an insect net showing how an upper corrugated section portion and a lower corrugated section portion are secured to each other.

[0021] Figure 5 is along Figure 4 A cross-sectional view along line VV, with the lower corrugated section and the upper corrugated section fixed to each other and in the unfolded state of the insect net.

[0022] Figure 6 yes Figure 1 An enlarged perspective view of a portion of the insect net is shown in an unfolded state.

[0023] Figure 7 and Figure 8 and Figure 4 A similar view shows an alternative embodiment of an insect net. DETAILED DESCRIPTION

[0024] Figure 1 A part of an embodiment of a greenhouse 1 according to the invention is shown. The greenhouse 1 is of the Venlo type and has a sloping roof 2. The roof 2 has a ridge 3 and a gutter 4 extending parallel to each other. A parallel window profile 5 extends between the gutter 4 and the ridge 3 and is perpendicular to the gutter 4 and the ridge 3. The ridge 3, the gutter 4 and the window profile 5 form a rectangular slot for a glass panel 6.

[0025] The roof 2 is provided with a louver 7 which also comprises a glass sheet 8. The upper edge of the louver 7 is pivotably mounted to the ridge 3 such that the louver 7 can be rotated relative to the ridge 3 about a pivot axis 9.

[0026] The ventilation window 7 can be rotated between a closed state and an open state. In the closed state, the ventilation window 7 covers the rectangular opening 10 in the roof 2, and in the open state, the opening 10 forms a ventilation channel. Figure 1 The ventilation window 7 is shown in its open state. The opening 10 is surrounded by two adjacent window profiles 5, the ridge 3 and an intermediate bar 11 between the adjacent window profiles 5. The gutter 4, the adjacent window profiles 5 and the intermediate bar 11 form a rectangular receptacle for a glass pane 12.

[0027] The greenhouse 1 is provided with a corrugated insect net 13 to prevent insects from entering the inside of the greenhouse 1 when the ventilation window 7 is in the open state. The insect net 13 comprises a fine mesh. It is fixed along the free edge of the ventilation window 7 and the fitting edge around the opening 10. The fitting edge around the opening 10 is formed by the adjacent window profile 5 and a part of the intermediate rod 11. The free edge of the ventilation window 7, i.e. the edge outside the upper edge pivotally mounted to the roof ridge 3, and the fitting edge around the opening 10 have a U-shape respectively. The insect net 13 can be fixed to the free edge of the ventilation window 7 and the fitting edge around the opening 10 by a flexible element such as rubber (not shown).

[0028] When the ventilation window 7 is in the closed state, the insect net 13 is in the folded state, and when the ventilation window 7 is in the open state, the insect net 13 is in the unfolded state. Figure 1 As shown. In the folded state, the insect net 13 is folded or compressed and is sandwiched between the free edge of the ventilation window 7 and the mating edge around the opening 10. In the unfolded state, the insect net 13 forms a front wall 14 and two opposite side walls 15. Each of the side walls 15 is angled relative to the front wall 14. In this case, the front wall 14 is perpendicular to each of the side walls 15. Figure 1In the embodiment shown, the front wall 14 is curved and the side walls 15 form rounded sections because the ventilation windows 7 are inclined windows. This may be different in alternative shapes of the ventilation windows 7. The front wall 14 meets the side walls 15 at the corner sections 16. The front wall 14 and the side walls 15 have an inner side of the insect net 13 exposed to the inner side of the greenhouse 1 and an outer side exposed to the outer side of the greenhouse 1.

[0029] The insect net 13 comprises a plurality of corrugated sections 17 which are stacked one on top of the other to form a corrugated shape. Each corrugated section 17 has a U-shape, comprising a base and two legs, wherein the legs are part of each side plate 15 and the base is part of the front plate 14. Figure 2 and Figure 3 A portion of one corrugated segment 17 is shown. Figure 4 and Figure 5 It is shown how the corrugated segments 17 are fixed to each other. Each corrugated segment 17 has a lower corrugated segment part 18 and an upper corrugated segment part 19, which are fixed to each other on the outside of the insect net 13 so as to form a bend and lie on top of each other in the folded state. Adjacent corrugated segments 17 are fixed to each other at the inside of the insect net 13. Figure 4 In FIG. 1 , the fixing at the inside and outside of the insect net 13 is shown by vertical dot-dash lines.

[0030] Figure 5 A cross section of the corrugated segment 17 at the front plate 14 in the unfolded state is shown, illustrating that each of the corrugated segments 17 forms a closed bend. In this case, the upper corrugated segment portion 19 and the lower corrugated segment portion 18 are fixed to each other by welding, thereby forming a welded area 20 extending along the corrugated segment 17. Alternatively, the upper corrugated segment portion 19 and the lower corrugated segment portion 18 may be fixed to each other by adhesive, sewing, fusion, etc. The corrugated segments 17 are fixed to each other at the inner side of the insect net 13 in a type manner.

[0031] Reference Figure 2 and Figure 3 , the lower corrugated section portion 18 comprises a rectangular first strip 21 along the front wall 14 and two parallel rectangular second strips 22 along each side wall 15, which meet each other at the corresponding corner portion 16. The first strip 21 of the lower corrugated section portion 18 is fixed to each of the second strips 22 of the lower corrugated section portion by respective lower seams 23 at respective corner portions 16. Similarly, the upper corrugated section portion 19 comprises a rectangular first strip 24 along the front wall 14 and two parallel rectangular second strips 25 along each side wall 15. The first strip 24 of the upper corrugated section portion 19 is fixed to each of the second strips 25 of the upper corrugated section portion 19 by respective upper seams 26 at respective corner portions 16.

[0032] At each of the corner portions 16, the transverse ends of the first strip 21 of the lower corrugated section portion 18 are fixed to the longitudinal sides of the second strip 22 of the lower corrugated section portion 18 facing each other, and the transverse ends of the second strip 25 of the upper corrugated section portion 19 are fixed to the longitudinal sides of the first strip 24 of the second corrugated section portion 19 facing each other. The first strip 21 and the second strip 22 of the lower corrugated section portion 18 may be fixed to each other at the lower seam 26 by sewing, welding, adhesive, fusion, etc. Similarly, the first strip 24 and the second strip 25 of the upper corrugated section portion 19 may be fixed to each other at the upper seam 26 by sewing, welding, adhesive, fusion, etc.

[0033] Reference Figure 4 , the first strip 24 of the upper corrugated section portion 19 extends above the ends of the first strip 21 of the lower corrugated section portion 18 and the second strip 22 of the lower corrugated section portion 18, while the second strip 22 of the lower bellows section 18 extends below the ends of the second strip 25 of the upper corrugated section portion 19 and the first strip 24 of the upper corrugated section portion 19.

[0034] Figure 6 A portion of the insect net 13 in the unfolded state at one of the corner portions 16 is shown. Since the upper seam 23 and the lower seam 26 of each of the continuous corrugated segments 17 do not overlap each other in the folded state, the ventilation window 7 can be evenly closed on the edge around the opening 10 of the roof 2. It is worth noting that in Figure 6 In the embodiment, adjacent corrugation segments 17 are identical at the corner portions 16, i.e., the lower seam 23 at the lower corrugation segment portion 18 is located at the same position of each of the corrugation segments 17 at the corner portion 16, and the upper seam 26 at the upper corrugation segment portion 19 is located at the same position of each of the corrugation segments 17 at the corner portion 16. This may be different in alternative embodiments. Figure 7 This is illustrated in the exemplary embodiment shown, which still has a corrugated section 17, wherein the lower seam 23 and the upper seam 26 have different positions in the corner section 16, viewed perpendicularly to the plane in which the corrugated section 17 lies in the folded state of the insect net 13.

[0035] Figure 8 Another alternative embodiment is shown having a corrugated section 17 in which the lower seam 23' and the upper seam 26' are not perpendicular to each other, but have different positions and directions at the corner portion 16, viewed in a direction perpendicular to the plane in which the corrugated section 17 lies in the folded state of the insect net 13.

[0036] The invention is not limited to the embodiments shown in the drawings and described above, which can be varied in different ways within the scope of the claims and their technical equivalents.

Claims

1. A corrugated insect net (13) for a ventilation window (7) of a greenhouse (1), the insect net (13) having a folded state and an unfolded state, wherein the insect net (13) is compressed in the folded state and wherein the insect net (13) forms at least a first wall (14) and a second wall (15), wherein the first wall (14) and the first wall (15) are angled with each other and meet at a corner portion (16) to form an inner side and an outer side of the insect net (13), wherein the insect net (13) comprises a plurality of corrugated segments (17), wherein each corrugated segment (17) comprises a first corrugated segment portion (18) and a second corrugated segment portion (19), which are fixed to each other at one of the inner side and the outer side to form a bend in the folded state and overlap each other, wherein the first corrugated segment portion (18) comprises a first corrugated segment portion (18) and a second corrugated segment portion (19) along the first corrugated segment portion (19). A first strip (21) of the first wall (14) and a second strip (22) along the second wall (15), the first strip and the second strip being fixed to each other by a first seam (23, 23') at a common edge of the first strip (21) and the second strip (22) facing each other at the corner portion (16) of the first corrugated section portion (18), the second corrugated section portion (19) comprising a first strip (24) along the first wall (14) and a second strip (25) along the second wall (15), the first strip and the second strip being fixed to each other by a second seam (26, 26') at a common edge of the first strip (24) and the second strip (25) facing each other at the corner portion (16) of the second corrugated section portion (19), characterized in that: The first seam (23, 23') and the second seam (26, 26') have different positions at the corner portion (16) when viewed from a direction perpendicular to the plane in which the corrugated section (17) is located when the insect net (13) is in a folded state.

2. The corrugated insect net (13) according to claim 1, wherein the first seam (23, 23') and the second seam (26, 26') are angled with each other at the corner portion (16), viewed from a direction perpendicular to a plane in which the corrugated section (17) is located in a folded state of the insect net (13).

3. The corrugated insect net (13) according to claim 1 or 2, wherein the first wall (14) and the second wall (15) are perpendicular to each other.

4. The corrugated insect net (13) according to claim 3, wherein at the corner portion (16), the lateral end of the first strip (21) of the first corrugated section portion (18) is fixed to the longitudinal side of the second strip (22) of the first corrugated section portion (18), and wherein at the corner portion (16), the lateral end of the second strip (25) of the second corrugated section portion (19) is fixed to the longitudinal side of the first strip (24) of the second corrugated section portion (19).

5. The corrugated insect net (1) according to claim 4, wherein the first corrugated section portion is a lower corrugated section portion (18), and the second corrugated section portion is an upper corrugated section portion (19) extending above the lower corrugated section portion (18), wherein the first strip (24) of the upper corrugated section portion (19) extends above the ends of the first strip (21) of the lower corrugated section portion (18) and the second strip (22) of the lower corrugated section portion (18), and the second strip (22) of the lower corrugated tube section (18) extends below the ends of the second strip (25) of the upper corrugated section portion (19) and the first strip (24) of the upper corrugated section portion (19).

6. The corrugated insect net (13) according to claim 1, wherein the insect net (13) is fused, stitched or adhered at the first seam (23, 23') and the second seam (26, 26').

7. The corrugated insect net (13) according to claim 1, wherein the first corrugation segment portion (18) and the second corrugation segment portion (19) are fused, sewn or adhered to each other at one of the inner side and the outer side.

8. The corrugated insect net (13) according to claim 1, wherein the first strips (21, 24) and the second strips (22, 25) of the first corrugated section portion (18) and the second corrugated section portion (19) are elongated pieces made of fine mesh yarn.

9. The corrugated insect net (13) according to claim 1, wherein the corrugated segments (17) have a U-shape.

10. A greenhouse (1) comprising a sloping roof (2), the roof (2) comprising an opening (10) and a ventilation window (7), the ventilation window (7) being rotatable between a closed state and an open state, wherein the ventilation window (7) covers the opening (10) in the closed state and forms a ventilation channel in the open state, wherein the greenhouse (1) further comprises an insect net (13) according to any one of the preceding claims 1 to 9, the insect net (13) being mounted on the ventilation window (7) and on the peripheral edge around the opening (10).

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