1- A closing device, consisting of a zip fastener 100 and a track 102 thereto, which the zip fastener has an angular body 104 longitudinally on its side edge. The median of the angular body 104 of the zip fastener 100 is substantially orientated perpendicularly to the axis of the flat body 106 of the zip fastener or to the surface of the linen 108 or wall 110 attached to it. On the opposite side of the zip fastener is either the extension of the linen which is an integrated part of the zip fastener or an attach by contact to the linen or a longitudinal gap 112 forming two elongated pellicles 114 allowing contact and wrapping for a link to a linen 108 or a wall 110. A track 102 for zip fastener 100 designed to allow the penetration of the angular body 104 of the zip fastener 100 inside of it between two walls 116, which their axis are substantially parallel separated by a gap 118 allowing the sliding of the zip fastener 100 in the track 102. A third wall 120 in the track 102 substantially orientated perpendicularly to the two substantially parallel walls 116 allow the possibility of a tight or releasable holding of the zip fastener 100 in the track 102 by opposition to the angular body 104 of the zip fastener 100 which forms a locking restriction 122 to the angular body 104 of the zip fastener 100.

2- A closing device, consisting of a flexible zip fastener 100 and a track 102 thereto, which the zip fastener has an angular body 104 longitudinally on its side edge. The median of the angular body 104 of the zip fastener 100 is substantially orientated perpendicularly to the axis of the flat body 106 of the zip fastener or to the surface of the linen 108 or wall 110 attached to it. On the opposite side of the zip fastener is either the extension of the linen which is an integrated part of the zip fastener or an attach by contact to the linen or a longitudinal gap 112 forming two elongated pellicles 114 allowing contact and wrapping for a link to a linen 108 or a wall 110. A track 102 for zip fastener 100 designed to allow the penetration of the angular body 104 of the zip fastener 100 inside of it between two walls 116, which their axis are substantially parallel separated by a gap 118 allowing the sliding of the zip fastener 100 in the track 102. A third wall 120 in the track 102 substantially orientated perpendicularly to the two substantially parallel walls 116 allow the possibility of a tight or releasable holding of the zip fastener 100 in the track 102 by opposition to the angular body 104 of the zip fastener 100 which forms a locking restriction 122 to the angular body 104 of the zip fastener 100.

3- A closing device, consisting of a flexible zip fastener 100 and a flexible track 102 thereto, which the zip fastener has an angular body 104 longitudinally on its side edge. The median of the angular body 104 of the zip fastener 100 is substantially orientated perpendicularly to the axis of the flat body 106 of the zip fastener 100 or to the surface of the linen 108 or wall 110 attached to it. On the opposite side of the zip fastener is either the extension of the linen which is an integrated part of the zip fastener or an attach by contact to the linen or a longitudinal gap 112 forming two elongated pellicles 114 allowing contact and wrapping for a link to a linen 108 or a wall 110. A track 102 for zip fastener 100 designed to allow the penetration of the angular body 104 of the zip fastener 100 inside of it between two walls 116, which their axis are substantially parallel separated by a gap 118 allowing the sliding of the zip fastener 100 in the track 102. A third wall 120 in the track 102 substantially orientated perpendicularly to the two substantially parallel walls 116 allow the possibility of a tight or releasable holding of the zip fastener 100 in the track 102 by opposition to the angular body 104 of the zip fastener 100 which forms a locking restriction 122 to the angular body 104 of the zip fastener 100.

4- A closing device according to claims 1 to 3 wherein zip fastener 100 and/or track 102 are made of carbonaceous material. 5- A closing device according to claims 1 to 3 wherein zip fastener 100 and/or track 102 are made of plastics carbonaceous material.

6- A closing device according to claims 1 to 3 wherein zip fastener 100 and/or track 102 are made of low friction, wear resistant, plastics carbonaceous material.

7- A closing device according to claims 1 to 3 wherein zip fastener 100 and/or track 102 are made of PVC (Polyvinyl Chlorate) material.

8- A closing device according to claims 1 to 3 wherein zip fastener 100 and/or track 102 are made of rubber material.

9- A closing device according to claims 1 to 3 wherein zip fastener 100 and/or track 102 are made of wood, aluminium, steel or any other metallic element and compound.

10- A closing device according to claims 1 to 3 wherein zip fastener 100 is an edge of a linen 108, curtain or canvas with or without weight added at the end or on the surface of the said linen, curtain or canvas.

H- A closing device according to claims 1 to 3 wherein zip fastener 100 is an edge of a flexible linen 108 translucent or opaque with or without weight added at the end or on the surface of the said flexible linen.

12- A closing device according to claims 1 to 3 wherein zip fastener 100 is an edge of a solid wall 110, solid partition or glass, instead of a linen.

13- A closing device according to claims 1 to 3 wherein zip fastener 100 is for applications as side edges of a flexible linen 108 or of a solid wall 110 for rolling door 124 with or without weight added 125 at the end or on the surface of said rolling door.

14- A closing device according to claims 1 to 3 wherein zip fastener 100 is for applications as side edges of a flexible linen 108 or of a solid wall 110 for roll-up door 126 with or without weight added 125 at the bottom or on the surface of said roll-up door 126.

15- A closing device according to claims 1 to 3 wherein zip fastener 100 is for applications as side edges of a flexible linen 108 or of a solid wall 110 for sealed partition with or without weight added 125 at the end or on the surface of said sealed partition.

16- A closing device according to claims 1 to 3 wherein zip fastener 100 has an angular body 104 longitudinally on its side edge allowing a rolling aligned movement 128 of the zip fastener 100 and of the linen 108 or wall 110 attached to it by stacking layers 130 encasing 132 the angular body 104 of the zip fastener 100 on a rolling trunk 134.

17- A closing device according to claims 1 to 3 wherein a track 102 for zip fastener 100 is designed to allow the penetration of the angular body 104 of the zip fastener 100 inside of it between two substantially parallel walls 116 separated by a gap 118 allowing the sliding of the zip fastener 100 in the track 102 and substantially oriented at 45 degrees toward the axis of the linen 108 or of the solid wall 110 attached to the zip fastener 100 and at 45 degrees toward the axis perpendicular to the linen 110 or solid wall 108 attached to the zip fastener 100.

18- A closing device according to claim 1 to 3, allowing a holding by triple contacts of the track 102 on the zip fastener 100 or by triple contacts of the zip fastener 100 on the track 102. A first contact 136 of the zip fastener 100 with the track 102 is located on the sliding inner face 138 of the exterior substantially parallel wall 140 of the track 102 with the extreme concave face 142 of the angular body 104 of the zip fastener 100. A second contact 144 of the zip fastener 100 with the track 102 is located on the sliding face 146 of the internal substantially parallel wall 148 of the track 102 with the extreme convex face 150 of the angular body 104 of the zip fastener 100. A third contact 152 of the zip fastener 100 with the track 102 is located on the inner face 154 of the locking restriction wall 122 of the track 102. The third wall 122, called locking restriction wall 122 holds the zip fastener 100 inside the track 102 with a contact on the central convex face 156 of the angular body 104 of the zip fastener 100.

19- A closing device according to claims 1 to 3 wherein some variation in the thickness of the zip fastener 100 and of the track 102 can be present on any of the zip fastener 100 or of the track 102.

20- A closing device according to claims 1 to 3 wherein some other angular section can be present on any of the zip fastener 100 or of the track 102.

21- A closing device according to claims 1 to 3 wherein the axis of the flexible linen 108 or of the solid wall 110 attached to zip fastener 100 can be substantially orientated parallel to the median of the angular locking body 104 of the zip fastener 100.

22- A closing device according to claims 1 to 3 wherein the axis of the flexible linen 108 or of the solid wall 110 attached to zip fastener 100 can be substantially orientated neither parallel nor perpendicular to the median of the angular locking body 104 of the zip fastener 100.

23- A closing device according to claims 1 to 3 wherein some flat 158, curved 160 or other angular body 162 besides the angular sliding and locking body 104 on zip fastener 100 can be present either or both together on extreme edge 164 of said zip fastener or between angular sliding and locking body 104 on zip fastener 100 and flexible linen 108 or solid wall 110 attached to it.

Figures listed below are titled underneath each figure showed.

Figure 1 is a transverse cross-section view of the closing device system

Figure 2 is a transverse cross-section view of the track

Figure 3 is a transverse cross-section view of the zip fastener

Figure 4 is a transverse cross-section view of an aligned rolling door on a rolling trunk

Figure 5 is a front view of one application of a rolling door as a roll-up door, with some components added to structure : a cover box for rolling trunk 166, a motor for operation 168, a spring 170 to reduce the weight of the rolling door, an extended rib on the linen 125, a bottom bar and sensing edge 172 as for examples to components and weights addable.

Figure 6 is a side view of a rolling trunk

Figure 7 is top cross-section view of a track 102, a zip fastener 100 and a linen, curtain, canvas 108 or a solid wall 110, as for one application where track 102 is attached to a steel or aluminium angle 174 with a screw 176 and where the said steel or aluminium angle is attached to a wall 178.

Figure 8 is a view of the closing device attached to a steel or aluminium angle 174. Figure 9 is a transverse cross-section view of a zip fastener according to claim 23