| 摘要 |
- 57 A vertical joint system 10 for substrates 12 is formed with joints Jm and Jf which engaged by relative motion in a direction perpendicular to major surfaces 14 and 16 of the substrate 12. 5 The joints are configured to enable relative rotation of up to 3 degrees (i.e. clockwise or anticlockwise) while maintaining engagement of the joints. The joints Jm and Jf are further configured to form two locking planes 18, 20 one on each of the inner and outer most sides of the joint. Engagement about the locking planes 18, 20 is provided by transverse outward extending surfaces Cml, Cm2, Cf1 and Cf2. The surface Cf1 and Cf2 overhang the 10 surfaces Cml and Cm2. At least one surface in each pair of engaging surfaces: Cf1 and Cml; and, Cf2 and Cm2 is smoothly curved. The joints Jm and Jf can be further arranged to provide a third locking plane 74 parallel to and between the locking planes 18, 20. The joints are disengaged by combination of a downward rotation of one joint relative the other then application of a downward force. By virtue of these features flooring with the joint system 15 can be laid on sub-surfaces which have undulations greater than current world industry standards. Additionally replacement of damaged substrates is possible by vertical lifting of damaged substrates without the need to pull up excess flooring from the closest wall to the damaged substrates. 4904631_1 (GHMatters) P89298.AU.3 ML1 ML3 ML2 FL1 FL3 FL2 Iml Im3 Im2 10 if 501 521 -- 14 26 68 2Cf 66 I618Cf3 [f2 1m 12, Ifi f3 Qf [ml , Cm2 R Cm3 70 40 L42 Pm 62 Fig56 16 58 34 64 Jm 12b 12a [fi - Pm P Cf1 -Cf2 Pmm 7 8 C 2 F i g 2 44 46 b80 J F ig 1b |
