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1. (WO2017136894) A SECURITY SCREEN ASSEMBLY
Note: Text based on automatic Optical Character Recognition processes. Please use the PDF version for legal matters

CLAIMS

1. A screen assembly including a sheet of meshlike screen material having an edge portion, a frame assembly including a plurality of elongate frame members assembled to define an opening which is at least partially closed by said sheet of screen material and wherein at least one of said elongate frame members includes at least one elongate slot to receive an edge portion of the screen material therein, the at least one elongate slot provided with a portion of an engagement mechanism, a primary fastener retained in each at least one elongate slot, said fastener having an abutment portion to abut the edge portion of the screen material within the opening, the fastener provided with a second portion of an engagement mechanism to engage with the portion of the engagement mechanism provided with the at least one elongate slot, and a secondary fastener engageable with the at least one elongate frame member to lock the primary fastener in the at least one elongate slot.

2. A screen assembly as claimed in claim 1 wherein the screen material is at least semi-rigid.

3. A screen assembly as claimed in claim 1 or claim 2 wherein the sheet of screen material has a shaped edge return portion, angled relative to the sheet to return over an adjacent part of the sheet to positively engage the primary fastener.

4. A screen assembly as claimed in claim 3 wherein the edge portion is angled relative to a main portion of the sheet at an acute angle.

5. A screen assembly as claimed in any one of the preceding claims wherein a single elongate slot is provided along each frame member.

6. A screen assembly as claimed in claim 5 wherein each or each elongate slot is formed from a pair of spaced apart side walls and at least one of the spaced apart side walls has a portion of an engagement mechanism associated with an inner surface thereof.

7. A screen assembly as claimed in any one of the preceding claims wherein the engagement mechanism provided includes a plurality of teeth members spaced over at least a portion of a surface.

8. A screen assembly as claimed in claim 6 further including a secondary catch assembly

including an abutment land provided on one of the spaced apart side walls defining the or each elongate slot and a second portion provided on the primary fastener, the abutment land provided on the side wall which is located relative to an interior of the screen assembly.

9. A screen assembly as claimed in claim 8 wherein the preferred abutment land engages with an abutment tooth formed on the primary fastener when the primary fastener is properly located in the elongate slot.

10. A screen assembly as claimed in any one of the preceding claims wherein the primary

fastener is an elongate fastener block or strip extending substantially over each frame member.

11. A screen assembly as claimed in any one of the preceding claims wherein the primary

fastener includes an engagement portion provided on each of the pair of side surfaces and corresponding with the engagement portion provided on the side walls of the elongate slot of the frame member.

12. A screen assembly as claimed in any one of the preceding claims wherein a rebate is

provided at a tail end of the primary fastener, extending over the primary fastener to receive a portion of the secondary fastener.

13. A screen assembly as claimed in any one of the preceding claims wherein the at least one secondary fastener is substantially U-shaped in cross-section including a cover portion in order to at least cover the primary fastener, a spaced apart engagement portion in order to engage with the frame member relative to which the secondary fastener is attached and an elongate wall separating the cover portion from the engagement portion.

14. A screen assembly as claimed in claim 13 wherein the engagement portion of the secondary fastener is an engagement block or strip to engage in a secondary opening in the frame member.

15. A screen assembly as claimed in claim 14 wherein the secondary opening in the frame

member provided to engage the secondary fastener is located immediately adjacent to the engagement slot and angled relative thereto.

16. A screen assembly as claimed in any one of claims 13 to 15 wherein an entry end of the engagement portion of the secondary fastener is tapered in order to ease entry of the engagement portion.

17. A screen assembly as claimed in any one of claims 13 to 16 wherein the elongate wall of the secondary fastener extends from an outer end of the engagement portion of the secondary fastener.

18. A screen assembly as claimed in any one of claims 13 to 17 wherein the cover portion of the secondary fastener covers and engages the primary fastener.

19. A screen assembly as claimed in any one of claims 13 to 18 wherein an engagement lug or flange is provided on a free end of the cover portion in order to engage with the primary fastener.

20. A screen assembly as claimed in any one of the preceding claims wherein each frame

member has a primary slot opening for a primary fastener in line with the screen material and a secondary slot opening for the secondary fastener extending substantially transversely or perpendicularly to the primary slot opening.