Walk-on laminated safety glass pane having an anti-slip surface

Abstract

A walk-on laminated safety glass pane having an anti-slip surface is described. The laminated safety glass pane includes at least two glass panes, which are permanently bonded to each other using a polymeric layer. A polymeric intermediate layer is applied to one surface of the laminated safety glass pane. A glass pane having an anti-slip surface is applied to the polymeric intermediate layer. An elastic polymeric gasket is inserted circumferentially in the edge region of the polymeric intermediate layer. The laminated safety glass pane has a drilled hole and the drilled hole is sealed at subatmospheric pressure.

Claims

1. A walk-on laminated safety glass pane having an anti-slip surface, comprising: a first glass pane and a second glass pane that are permanently bonded to each other through a polymeric layer to form a laminated safety glass pane; a polymeric intermediate layer applied to one surface of the laminated safety glass pane; a third glass pane having an anti-slip surface, the third glass pane being applied to the polymeric intermediate layer; and an elastic polymeric gasket inserted circumferentially in an edge region of the polymeric intermediate layer, wherein the laminated safety glass pane has a drilled hole sealed at subatmospheric pressure with a valve within the drilled hole.

2. The walk-on laminated safety glass pane according to claim 1, wherein the polymeric layer contains at least one of the polymeric films polyvinyl butyral (PVB), ethyl vinyl acetate (EVA), and polyurethane (PU) with a thickness of 0.76 mm to 1.6 mm.

3. The walk-on laminated safety glass pane according to claim 1, wherein the first glass pane and the second glass pane each have a thickness of 8 mm to 25 mm.

4. The walk-on laminated safety glass pane according to claim 1, wherein the polymeric intermediate layer contains at least one of the polymeric films polyvinyl butyral (PVB), ethyl vinyl acetate (EVA), polyurethane (PU), and polyvinyl chloride (PVC) with a thickness of 0.5 mm to 2.0 mm.

5. The walk-on laminated safety glass pane according to claim 1, wherein the polymeric intermediate layer is located under the anti-slip surface in an at least partial longitudinal correspondence with the anti-slip surface.

6. The walk-on laminated safety glass pane according to claim 5, wherein the polymeric intermediate layer is in full longitudinal correspondence with the anti-slip surface.

7. The walk-on laminated safety glass pane according to claim 1, wherein the third glass pane is thermally or chemically prestressed or partially prestressed and has a thickness of 6.0 mm to 12.0 mm.

8. The walk-on laminated safety glass pane according to claim 1, wherein the anti-slip surface is a surface coating applied to the third glass pane.

9. The walk-on laminated safety glass pane according to claim 8, wherein the surface coating covers the third glass pane at least in regions of the third glass pane.

10. The walk-on laminated safety glass pane according to claim 8, wherein the surface coating forms a predetermined pattern of the third glass pane.

11. The walk-on laminated safety glass pane according to claim 1, wherein the circumferential elastic polymeric contains one or more of silicone rubber, polyurethanes, butyl rubber, and polyacrylates.

12. The walk-on laminated safety glass pane according to claim 1, wherein the elastic polymeric gasket is a silicone profile.

13. The walk-on laminated safety glass pane according to claim 1, wherein the elastic polymeric gasket has protrusions.

14. The walk-on laminated safety glass pane according to claim 1, wherein the drilled hole has a diameter of 5 mm to 8 mm.

15. An arrangement comprising the walk-on laminated glass safety pane of claim 1, the arrangement being selected from the group consisting of: a glass floor, a platform, a stair step, a light cutout, and a bridge glazing.

16. A method for producing a walk-on laminated safety glass pane, comprising: providing a first glass pane and a second glass pane that are permanently bonded to each other through a polymeric layer to form a laminated safety glass pane, wherein the laminated safety glass pane has a drilled hole; applying a polymeric intermediate layer to one surface of the laminated safety glass pane; placing a circumferential elastic polymeric gasket in an edge region of the polymeric intermediate layer; placing a third glass pane having an anti-slip surface on the polymeric intermediate layer so as to fit into the circumferential elastic polymeric gasket; applying subatmospheric pressure through the drilled hole in the laminated safety glass pane; and sealing the drilled hole at subatmospheric pressure with a valve within the drilled hole.

Description

(1) The invention is explained in detail in the following with reference to drawings.

(2) They depict:

(3) FIG. 1: A cross-section of a walk-on laminated safety glass pane with an anti-slip surface according to the invention with an unsealed drilled hole,

(4) FIG. 2: A cross-section of a walk-on laminated safety glass pane with an anti-slip surface according to the invention, wherein the drilled hole is sealed at subatmospheric pressure with a valve,

(5) FIG. 3: A bottom plan view of a walk-on laminated safety glass pane with an anti-slip surface according to the invention,

(6) FIG. 4a: A cross-section of a walk-on laminated safety glass pane with an anti-slip surface according to the invention with a preferred embodiment of an elastic seal in the region of the edges,

(7) FIG. 4b: A cross-section of a walk-on laminated safety glass pane with an anti-slip surface according to the invention with a preferred embodiment of an elastic seal in the region of the edges,

(8) FIG. 5: A spherical view of a circumferential elastic polymeric gasket as a profile with protrusions,

(9) FIG. 6: A cross-section of a walk-on laminated safety glass pane with an anti-slip surface according to the prior art,

(10) FIG. 7: A top plan view of a walk-on laminated safety glass pane with an anti-slip surface according to the invention wherein the polymeric intermediate layer is mounted only partially congruently under a partially applied anti-slip surface instead of on the full surface, and

(11) FIG. 8: A cross-section of a walk-on laminated safety glass pane with an anti-slip surface according to the invention of FIG. 7.

(12) FIG. 1 depicts, in cross-section, a walk-on laminated safety glass pane with an anti-slip surface according to the invention with an unsealed drilled hole, consequently, in the depressurized state. For this, a laminated safety glass pane 5 made of at least two 20.0-mm-thick glass panes is produced. For this, the glass panes are laminated with a PVB film 3 with a thickness of 0.76 mm or 1.52 mm. Thereafter, a drilled hole 7 is made in the laminated safety glass pane 5. A polymeric film 4 with a thickness of 1.52 mm is placed on one glass surface of the laminated safety glass pane 5. A silicone profile as an elastic polymeric gasket 6 is inserted circumferentially in the edge region of the polymeric film 4. A glass pane 1 with a thickness of 12.0 mm with an anti-slip surface 2 is placed on the polymeric film 4 such that the anti-slip surface 2 faces upward. The anti-slip surface 2 was applied by screen printing on the surface of the glass pane 1.

(13) FIG. 2 depicts, in cross-section, a walk-on laminated safety glass pane with an anti-slip surface according to the invention with a sealed drilled hole, consequently, with subatmospheric pressure applied. For this, a subatmospheric pressure is applied on the laminated safety glass pane 5 through the drilled hole 7. Then, a valve 8 situated in the drilled hole 7 is closed at subatmospheric pressure. The subatmospheric pressure holds the upper pane 1 permanently bonded to the laminated safety pane 5 via the intermediate layer 4.

(14) FIG. 1 and FIG. 2 show that the pane of the laminated safety glass pane 5 adjacent the intermediate layer 4 and the pane 1 preferably have recesses in the edge region, which recesses enable the positioning of the circumferential elastic polymeric gasket 6.

(15) FIG. 3 depicts, as a bottom plan view, a walk-on laminated safety glass pane with an anti-slip surface according to the invention. It depicts how the drilled hole 7 is drilled and how the intermediate layer 4 is positioned. Also depicted is how the circumferential elastic polymeric gasket 6 is inserted.

(16) FIG. 4a and FIG. 4b depict, in cross-section, two walk-on laminated safety glass panes according to the invention with an anti-slip surface positioned next to each other with a preferred embodiment of an elastic seal 6 in the region of the edges. The elastic seal 6 has protrusions 9a and 9b. The protrusions 9a and 9b protect the edges of the laminated safety glass panes with an anti-slip surface during transport and during placement next to one another in the flooring sector. They also represent a spacer. The protrusions 9a and 9b differ in the embodiment. The protrusions 9a are tapered decreasing outward. The protrusions 9b are curved outward.

(17) FIG. 5 depicts, in a spherical view, the circumferential elastic polymeric gasket 6 as a profile, in particular as a silicone profile. A profile variant 6 with outwardly decreasing tapered protrusions 9 is depicted. The use of profiles as an elastic polymeric gasket 6 has proven itself.

(18) FIG. 6 depicts a walk-on laminated safety glass pane with an anti-slip surface according to the prior art. It is shown that the uppermost anti-slip glass pane is permanently bonded to the load-bearing panes positioned thereunder. An exchange of the upper pane is no longer possible. The entire laminated safety glass pane with an anti-slip surface must be exchanged in the event of repair. Replacement of the uppermost pane is not possible without disassembling the complete structure. Replacement is necessary in the event of breakage or wear or when a new design is desired.

(19) FIG. 7 and in FIG. 8 depict that the polymeric intermediate layer 4 is mounted only partially and almost congruently under a partially applied anti-slip surface 2 instead of on the full surface. For the sake of clarity, the circumferential polymeric gasket 6 and the drilled hole 7 are not shown.

LIST OF REFERENCE CHARACTERS

(20) 1 uppermost glass pane/anti-slip glass pane single-pane safety glass/protective glass 2 anti-slip surfaces 3 polymeric layers for permanent bonding/laminating of glass panes of a laminated safety glass pane 4 clear, transparent, or opaque intermediate layer/polymeric film 5 laminated safety glass pane/load-bearing glass panes 6 elastic polymeric gasket 7 drilled holes in the laminated safety glass pane 8 valve for sealing the subatmospheric pressure between the anti-slip glass pane and the laminated safety glass pane 9 protrusions of the elastic polymeric gasket (6)