RU73272U1 - GLASS PACKAGE "SHIELD" FOR ARMORED CAR - Google Patents

Abstract

The utility model "Double-glazed window" Shield "for an armored car" refers to the field of glass production. The purpose of using the utility model is to protect objects from being hit by handguns, in particular, to equip armored vehicles with bulletproof glasses.

The goal is achieved by the fact that the warning layer of glass is made of two silicate non-tempered glass with a thickness of 2.5-3 mm, interconnected by an adhesive layer of a polymer film up to 0.8 mm thick, while the subsequent layers of glass, designed for maximum breaking forces are made of tempered silicate glass of ionic processing, 6 mm thick, connected to each other and to the first glass by similar adhesive layers, the minimum number of subsequent glasses being equal to two, and the maximum thickness of the package is determined by GOST R 51136-98 depending on the degree of protection of the car.

Description

Double-glazed window "Shield" for an armored car (hereinafter referred to as a double-glazed window) refers to the field of glass production for protecting objects from being damaged by hand guns, in particular, for equipping armored vehicles with bulletproof glass.

Known glass is multilayer bulletproof (see AS No. 95110795), consisting of two layers interconnected by a polymer film having an adhesive layer on both sides.

However, this technical solution does not solve the problem of bullet resistance. the presence of two glasses requires their greater thickness, and the presence of an adhesive joint with a polymer film does not allow its use in the glazing of armored vehicles, where there is a dynamic and impact load. It is not possible to make a double-glazed window bent due to the large thickness of the glass.

A technical solution is known where glasses are collected in bags (see patent No. 1371) using polymer adhesive layers between the glasses.

But these double-glazed windows are enclosed in a clip and cannot be installed on the car, because of their design, in addition, when bullets are hit, funnels are formed, fragments fall out, i.e. thinning of the glass and the next shot the glass will be shot.

The closest technical solution is bulletproof bulletproof glass having a warning layer (see AS 9401074 "Bulletproof glass"). Between the warning layer there is a space filled with liquid to dampen the spray of fragments from the shot.

This design cannot be used for glazing a car, but can be used for glazing buildings, structures and banks.

The purpose of this technical solution is to create a double-glazed window with the ability to install it on an armored car and increase its bullet resistance, ensuring the safety of people.

The goal is achieved in that the warning layer of glass is made of two silicate non-tempered glass with a thickness of 2.5-3 mm, interconnected by an adhesive layer of a polymer film up to 0.8 mm thick, with subsequent layers

glasses designed for maximum destructive forces are made of ion-treated tempered silicate glass of 6 mm thickness, interconnected with the first glass and similar adhesive layers, the minimum number of subsequent glasses being two, and the maximum package thickness determined by GOST R 51136-98 depending from the degree of protection of the car.

The invention is illustrated by drawings.

Figure 1 is a General view;

Figure 2 is a section aa;

On a photo 1 - a sample with a warning layer;

On a photo 2 - a sample without a warning layer.

Figure 1, 2 shows a double-glazed window "Shield" for the third class of vehicle protection. The total thickness of the glass unit is 28 mm, which corresponds to GOST R 51136-98.

Double-glazed window 1 consists of a pre-destructive layer 2 and subsequent layers 3 to counteract maximum damage.

The pre-destructive layer 2 consists of two non-tempered silicate glasses 4 interconnected by an adhesive layer of a polymer film with a cross-direction of the wave hood 5. The shock-absorbing layers 3 consist of a series of tempered glasses 6 interconnected by adhesive layers 5.

On the inner side of the double-glazed window 1, facing the protected object, a film 7 is glued, with a thickness of up to 1.5 mm (see figure 2).

Along the contour of the double-glazed window 1, a layer is applied that seals the joints protecting them from environmental influences.

Double-glazed window 1 is used as follows. When a bullet enters it, a hole with torn edges is formed on the warning layer of glasses 2, after which, as a result of an impact on the tempered glass, an explosive funnel is formed with many fragments that did not fall out and remained behind the first layer of warning glasses 4, thus preserving integrity double-glazed window 1.

A similar construction of the Shield double-glazed window allows preserving its integrity with a decrease in resistance after the first shot to 70-80%, and subsequent shots take on the subsequent layers of tempered glass 6. The presence on the inner side of the glass of a polymer film 7 with a thickness of up to 1.5 mm prevents an object from accidental splinters falling onto it.

The use of the double-glazed window "Shield" allows you to choose the smallest thickness depending on the degree of protection of the car, relatively known technical solutions and thereby reduce its weight on the protected car.

Claims (1)

A double-glazed window for an armored car containing the first layer of silicate glass for preventing destruction, subsequent layers of glass are resistant to destruction, not leading to damage to the protected object, interconnected by adhesive layers of a polymer film with a cross-direction of the wave hood in each layer, and the last layer of glass has a polymer a film on the inside facing the protected object, characterized in that the warning layer of the glass is made of two silicate non-toughened glasses 2.5-3 mm thick interconnected by an adhesive layer of a polymer film with a thickness of up to 0.8 mm, while the subsequent layers of glass, designed for maximum breaking forces, are made of tempered silicate glass of ionic processing 6 mm thick, interconnected with the first glass and similar adhesive layers, the minimum number of subsequent windows is two, and the maximum thickness of the package is determined depending on the degree of protection of the car.