Laminated glass

Abstract

Laminated glass, comprising two sheets of glass (1) and an interlayer (2) sandwiched between the two sheets of glass (1), wherein the interlayer (2) is provided with at least two regions, a gap (23) is provided between two adjacent regions of the interlayer (2), and when the glass is shattered, at least one region of the interlayer (2) may be opened at the gap (23) to form a passage. When there is a need to break a window, the glass (1) is shattered, and due to the presence of the gap (23) in the interlayer (2), the glass can be easily opened to form an escape passage, which changes the conventional perception that the interlayer (2) is a single continuous piece.

Description

Laminated glass Technical Field

[0001] This invention relates to vehicle or building glass, and more particularly to laminated glass. Background Technology

[0002] Laminated glass is a high-grade safety glass made by sandwiching a PVB film between two or more layers of flat glass (or hot-bent glass) under high pressure. It features transparency, high mechanical strength, UV protection, heat insulation, sound insulation, bulletproofing, and shatterproofing. When the glass breaks due to impact, the fragments are held together by the PVB, minimizing the risk of injury. It only forms radial cracks, maintaining its original shape and visibility, and can continue to be used for a certain period of time.

[0003] When a vehicle catches fire or falls into water, the doors may become inaccessible, leading to injuries or fatalities. Window breakers have become a standard or essential safety feature in vehicles. However, for vehicles with laminated glass, the strength of the glass and the ability to break the window present a paradox. Currently, window breakers with an impact force of at least 1100N can only break the laminated glass layer. However, because a large piece of high-strength PVB adhesive is sandwiched in the middle, the broken glass remains intact, preventing occupants from escaping by opening the window. Summary of the Invention

[0004] The purpose of this invention is to provide a laminated glass that is easy to open using a window breaker.

[0005] To achieve the above objectives, the present invention provides laminated glass comprising two panes of glass and an interlayer sandwiched between the two panes of glass. The interlayer has at least two regions, with a gap between adjacent regions. At least one region of the interlayer can be opened through the gap to form a passage after the glass is broken. The passage formed after all gaps are opened is large enough for an adult to pass through.

[0006] The gap is filled with a non-stick filler material.

[0007] The gap can be a closed frame, a ring, or a polygon.

[0008] The gap can be a semi-closed frame, ring, or polygon.

[0009] The gap is defined as having at least three radial lines.

[0010] The gaps are provided with connecting ribs.

[0011] The gap is formed by multiple circular connections.

[0012] The gap has two sides that are either serrated or wavy, and the two sides are connected by a point.

[0013] After adopting the above scheme, gaps are opened in the film. When the window breaker breaks the glass, gaps are opened in the film (the connecting ribs are thin and easy to break), and the film in different areas can be easily pushed apart to form a passage that people can pass through, thus making it possible to escape. Attached Figure Description

[0014] Figure 1 is a schematic diagram of the structure of the present invention;

[0015] Figure 2 is a schematic diagram of the film according to the first embodiment of the present invention;

[0016] Figure 3 is a schematic diagram of the film according to the second embodiment of the present invention;

[0017] Figure 4 is a schematic diagram of the film according to the third embodiment of the present invention;

[0018] Figure 5 is a schematic diagram of the film according to the fourth embodiment of the present invention;

[0019] Figure 6 is a schematic diagram of the film gap edge structure of the present invention.

[0020] Label Explanation:

[0021] 1. Glass; 2. PVB film; 21, 21a, 21b, 21c, First area; 22, 22a, 22b, 22c, Second area; 23, 23a, 23b, 23c, Gap; 24, 24a, 24b, 24c, Connecting ribs. Embodiments of the present invention

[0022] To illustrate the technical content, structural features, objectives, and effects of the present invention in detail, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0023] Please refer to Figure 1. This invention is a sandwich structure consisting of two layers of glass 1 sandwiching a layer of PCB film 2 (or other film), as shown in Figure 2. The PCB film 2 has a square-shaped gap 23, or it can be a closed loop such as annular or polygonal. The gap 23 divides the entire film into two regions: an inner region 21 and a second region 22 (or multiple regions, such as the grid pattern of Chinese characters). The width of the gap 23 ensures that the laminated glass will not re-bond together during hot pressing. To prevent the film in the second region from falling off and to prevent the overall spacing from deforming when the film is laid on the glass, the gap 23 is provided with several connecting ribs 24. To avoid air bubbles during processing, the gap 23 is filled with a non-stick material (its main function is to prevent air bubbles from forming during the hot pressing of the glass; this material only needs to be transparent and non-stick). In case of an emergency requiring window breaking, a window breaker is used to shatter both the inner and outer layers of glass. The broken glass remains stuck to the film, but due to the gap 23 between the film in the second area 22 and the film in the first area 21, they are not adhered to each other. The connecting ribs 24 in the gap 23 are thin and can be broken with a small force. Pushing the second area 22 outward, this part of the film and the glass stuck to the film can be pushed outward and fall completely, forming a passage for people to pass through, facilitating escape.

[0024] As shown in Figure 3, in another embodiment of the present invention, the gap 23a between the first region 21a and the second region 22a is not closed-loop, and one side or part of it is connected together. The gap 23a is provided with several connecting ribs 24a. In use, when the second region 22a is pushed outward, the film and the glass attached to the film are not completely detached before being pushed outward, and are still connected to the first region 21a.

[0025] As shown in Figure 4, in the third embodiment of the present invention, a cross-shaped gap 23b is provided on the film, and a connecting rib 24b is provided in the middle of the cross-shaped gap. This gap can be at least three spoke-shaped gaps, and the gaps can be lines or curves. In use, the upper first region 21b and second region 22b, as well as the lower third and fourth regions, are all pushed outward to form an escape passage.

[0026] As shown in Figure 5, in the fourth embodiment of the present invention, the gap 23C formed by multiple circles divides the film into a first region 21c and a second region 22c, and the circles are connected by ribs 24c.

[0027] Figure 6 shows a schematic diagram of the edge structure of the gap in this invention. The gap 23e is formed by a serrated edge, with the tips of the serrations connected to form connecting ribs 24e. Since the connecting ribs 24e are point-connected, they can be easily broken during use. The edge of this invention can also be formed into a wavy shape with the crests facing each other, creating a point-connected shape.

[0028] This invention changes the conventional thinking that film is made from a single piece the same size as glass to increase strength and quietness. Instead, it divides the film into different areas with gaps between them that are not glued. In an escape, after the glass is completely broken, the film in different areas can be opened at the gaps to form an escape route. Therefore, dividing the film completely changes the conventional understanding.

[0029] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. Laminated glass, comprising two panes of glass and an interlayer sandwiched between the two panes of glass, characterized in that: The film has at least two regions, with a gap between adjacent regions. The film in at least one region can be opened through the gap to form a channel after the glass is broken.

2. The laminated glass as described in claim 1, characterized in that; The film in all areas was punched through the gaps to form an adult escape route.

3. The laminated glass as described in claim 1, characterized in that: The gap is filled with a transparent, non-stick filler material.

4. The laminated glass as described in claim 1, characterized in that; The gap can be a closed frame, a ring, or a polygon.

5. The laminated glass as described in claim 1, characterized in that; The gap can be a semi-closed frame, ring, or polygon.

6. The laminated glass as described in claim 1, characterized in that; The gap is defined as having at least three radial lines.

7. The laminated glass as described in claim 1, characterized in that; The gaps are provided with connecting ribs.

8. The laminated glass as described in claim 1, characterized in that; The gap is formed by multiple circular connections.

9. The laminated glass as described in claim 1, characterized in that; The gap is characterized by serrated edges.

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