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1. (WO2019023745) FORMWORK PANEL FRAME
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CLAIMS:

1. A disassemblable formwork panel frame, comprising:

a pair of longitudinal side beams; and

a pair of longitudinal end beams, each end beam having an opening at each end, each opening providing access to a corresponding internal cavity that extends longitudinally from the opening into the end beam; and

four first connectors either connectable to, or formed on, the side beams, each first connector having a projection shaped and sized to slide longitudinally via one of the openings into the corresponding internal cavity;

wherein the formwork panel frame has a disassembled configuration, in which the side beams and end beams are not joined, and an assembled configuration, in which the end beams are arranged parallel to each other and perpendicular to the side beams and are joined to one another by the projections of the first connectors, each first connector projection being longitudinally and slidably received in a respective one of the end beam cavities and secured in place by at least one releasable fastener securing each first connector projection against longitudinal sliding movement within the respective end beam cavity.

2. The formwork panel frame of claim 1, wherein:

the first connectors are separate components that are each attachable to the side beams by way of a mounting flange that is perpendicular to the projection;

the side beams each have a first aperture formed transversely through the side beam at each end; and

the first apertures are shaped to receive the projections of the first connectors, such that in the assembled configuration the first connector projections extend through the first apertures of the side beams and into the respective end beam cavity.

3. The formwork panel frame of claim 1 or 2, further comprising:

at least one longitudinal crossbeam having at each end an opening and a

corresponding internal cavity that extends longitudinally from the opening into the crossbeam; and

at least two second connectors either connectable to, or formed on, the side beams, each second connector having a projection shaped and sized to slide longitudinally via one of the openings into the corresponding internal cavity of the crossbeam;

wherein, in the assembled configuration, the crossbeams are joined to the side beams, each second connector projection being longitudinally and slidably received in a respective one of the crossbeam cavities and secured in place by at least one releasable fastener securing each second connector projection against longitudinal sliding movement within the respective crossbeam cavity.

4. The formwork panel frame of claim 3, wherein:

the second connectors are separate components that are each attachable to the side beams by way of a mounting flange that is perpendicular to the projection;

the side beams each have at least one second aperture formed transversely through the side beam longitudinally in between the first apertures; and

the second apertures are shaped to receive the projections of the second connectors, such that in the assembled configuration the second connector projections extend through the second apertures of the side beams and into the respective crossbeam cavity.

5. The formwork panel frame of claim 1, wherein the first connectors are separate components that are each attachable to an internal wall of the side beams by way of a mounting flange that is perpendicular to the first connector projection.

6. The formwork panel frame of claim 3, wherein the second connectors are separate components that are each attachable to an internal wall of the side beams by way of a mounting flange that is perpendicular to the second connector projection.

7. The formwork panel frame of claim 3 or 4, further comprising:

at least one brace member extending perpendicular to the at least one crossbeam and secured to the at least one crossbeam.

8. The formwork panel frame of claim 7, wherein the at least one brace member is secured to the at least one crossbeam by way of mechanical fasteners.

9. The formwork panel frame of claim 3 or 4, wherein the internal cavities of each crossbeam and the perpendicular projection of each second connector have a generally rectangular cross-section.

10. The formwork panel of any one of claims 1 to 9, wherein the internal cavities of each end beam and the perpendicular projection of each first connector have a generally right trapezoidal cross-section.

11. The formwork panel frame of any one of claims 1 to 10, wherein the side beams and the end beams have an upper L-shaped flange, which in the assembled configuration forms a rectangular frame for receiving a formwork panel.

12. The formwork panel of any one of claims 1 to 11, wherein each of the side beams, end beams, crossbeams, and brace members is formed by aluminium extrusion.