KR20200144433A - Glass Breaker - Google Patents

Abstract

The present invention relates to a glass crushing apparatus. According to the present invention, the glass crushing apparatus comprises: a crushing unit (1); a spring unit (2) which applies elastic force to the crushing unit (1); a fixing unit (3) provided on the outer side of the spring unit (2); and a heating unit (4) provided on the outer side of the fixing unit (3). According to the present invention, a window can be easily crushed.

Description

Glass Breaker {Glass Breaker}

The present invention is a glass crushing device, and more particularly, it is attached to a window provided in a passenger car and a commercial vehicle, and when it is difficult to normally escape through the door due to a sudden accident, the glass crushing device quickly and easily crushes the window to secure an exit. It relates to the device.

In the event of a fire in the vehicle due to a vehicle crash, collision, rollover accident, overturning accident, reverse stone accident, and fall accident on expressways and general roads, if you cannot evacuate out of the vehicle, serious personal injury occurs.

In particular, damage to property and personnel caused by fires in buses is increasing not only in Korea but also worldwide, and the government's emergency exit and fire extinguisher-related correction recommendations have exceeded 1,000 cases in 5 years. However, despite the government's measures, the number of accidents increases every year.

In these accidents, most of the deaths are suffocation, and in the event of a fire, it is difficult to secure a view due to smoke, and escape may be delayed.

In addition to fire, when a vehicle falls into water, water flows into the vehicle and the door is not easily opened due to a pressure difference inside and outside the vehicle, which takes a long time to escape from the vehicle, resulting in extremely improved survival rates.

Most of the windows provided in the vehicle are tempered glass, and the strength of the tempered glass is 4 to 5 times higher than that of ordinary glass, so it is not easily broken because it is heat treated special glass.

Escape safety devices, which are mainly used on buses, have a big disadvantage in that in an emergency, you must find a hammer and break the glass yourself in an urgent situation. Taking a bus fire as an example, it is not only difficult to find a safety hammer due to the smoke caused by the fire when a fire occurs, and even if it is found, it is often reported that the bus glass made of tempered glass could not be broken quickly, delaying the escape time, causing more human damage.

For safety while driving, bus glass made of tempered glass is quite difficult to destroy unless it is a safety hammer and fire extinguisher, and there is a problem in that response is delayed because tools are not found in an emergency situation.

The present invention has been conceived to solve the above-described problems, and is provided on one side of a vehicle window, and is operated by a user's operation or a vehicle system in an emergency to provide a glass crushing device that easily crushes the window.

In order to solve the above-described problem, the present invention provides a glass crushing device for crushing a glass window by applying a force to the crushing portion while the compression spring is restored to its original state. ); A spring portion (2) applying an elastic force to the crushing portion (1); A fixing part 3 provided outside the spring part 2 and fixing the spring part 2 in a compressed state; And a heating part 4 provided outside the fixing part 3 and generating heat, wherein the fixing part 3 is changed into a predetermined shape by the heating part 4, It provides a glass crushing device, characterized in that the spring portion (2) is actuated by releasing the fixing force to the portion (2).

In this case, the heating unit 4 may be a heating element heated by electric energy.

In addition, the fixing part 3 is composed of a shape memory alloy, the matrix of the shape memory alloy is formed to have a predetermined shape at a transformation temperature, so that the spring part 2 can be fixed in a compressed state. It may be manufactured by changing the shape of the shape memory alloy at a temperature lower than the transformation temperature by a predetermined value.

In another embodiment, the fixing part 3 is made of a thermoplastic plastic, is formed to have a predetermined shape so that the spring part 2 can be fixed in a compressed state, and heated by the heating part 4. When receiving the material is softened and at the same time loses the fixing force to the spring portion (2), the spring portion (2) can apply an elastic force to the crushing portion (1).

In another embodiment, the fixing part 3 includes a thermoplastic adhesive, maintains a predetermined shape so that the spring part 2 can be fixed in a compressed state by the adhesive, and the heating part 4 As a result, when the adhesive is heated, the shape of the fixing part 3 is deformed, so that the fixing force for the spring part 2 is lost, so that the spring part 2 can apply an elastic force to the crushing part 1.

According to the glass crushing device according to an embodiment of the present invention, when the coil provided inside receives heat, the compression spring, which was fixed in a compressed state, recovers to its original length, and a force is applied to the glass crushing unit to destroy the window. In the event of an emergency situation such as a fire or an accident in which the vehicle falls into water or a rollover accident, the person inside the vehicle can quickly escape, thereby minimizing personal injury.

1 is a cross-sectional view of a glass crushing apparatus according to an embodiment of the present invention.
2 is a front view of a glass crushing device according to an embodiment of the present invention.
3 is a perspective view of a crushing unit according to an embodiment of the present invention.
4 is a cross-sectional view of a glass crushing device showing a fixed part according to an embodiment of the present invention.

The terms or words used in the present specification and claims are not to be construed as being limited to their usual or dictionary meanings, and the inventor may appropriately define the concept of terms for describing his own invention in the best way. It should be interpreted as a meaning and concept consistent with the technical idea of the present invention based on the principle that there is. Accordingly, the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention, and do not represent all the technical ideas of the present invention, and thus various alternatives that can be substituted for them at the time of application It should be understood that there may be equivalents and variations.

In addition, expressions in the singular include plural expressions unless the context clearly indicates otherwise. In addition, terms such as "comprises" or "have" described herein are intended to designate the existence of features, numbers, steps, actions, components, parts, or a combination thereof described in the specification, but one or more It is to be understood that the presence or addition of other features, numbers, step actions, components, parts, or combinations thereof does not preclude in advance.

In the glass crushing apparatus for crushing a glass window by applying a force to the crushing portion while the compression spring of the present invention is restored to its original state, the glass crushing device includes: a crushing unit 1 having a predetermined hardness so as to crush the window; A spring portion (2) applying an elastic force to the crushing portion (1); A fixing part 3 provided outside the spring part 2 and fixing the spring part 2 in a compressed state; And a heating part 4 provided outside the fixing part 3 and generating heat, wherein the fixing part 3 is changed into a predetermined shape by the heating part 4, It provides a glass crushing device, characterized in that the spring portion (2) is operated by releasing the fixing force on the portion (2).

As shown in Figure 1, the crushing portion (1), the spring portion (2), the fixing portion (3) and the heating portion (4) further includes a case having a predetermined shape can be provided, the case is a conventional Since it is within the range that can be easily created by a technician, it is not described in detail.

In addition, as shown in FIG. 3, the crushing portion 1 may be configured in a triangular pyramid shape and applied by concentrating a tensile force to a point of the window hole.

Due to the nature of the tempered glass, even if a crack occurs only in a local area, the entire glass is cracked and destroyed. Therefore, when a crack occurs around a hole provided in the window according to the present invention, the window can be effectively broken.

In addition, the crushing portion 1 may be made of, for example, tungsten, a cemented carbide that is stronger than a shape memory alloy. Having a predetermined hardness so as to destroy the glass window is not described in detail because it is within a range that can be easily performed by a person skilled in the art by using a material and a processing method of an appropriate material through the description of the present invention.

In this case, the heating unit 4 may be a heating element heated by electric energy. Therefore, since the heating part 4 is provided outside the fixing part 2, heat conduction may occur.

The heating element according to an embodiment of the present invention may be applied to a coil, a cable, a film-type planar heater or a fibrous planar heater.

Alternatively, the heating unit 4 may be any known technology that heats an object other than a heating element.

In addition, a supply means for supplying electric energy to the heating unit 4 and an operation means for operating the supply means may be further included. Accordingly, electric energy is supplied to the heating unit from the supply unit according to the operation of the operating unit, thereby generating electric resistance and heating.

The supply means may include at least one of a portable battery, a vehicle battery, a vehicle power (engine), a commercial power supply, an emergency power supply, and a spare power supply.

The operation means is provided with a USB terminal, in case the power supply installed in advance in an emergency situation malfunctions, electric energy to the heating unit 4 through a portable device or auxiliary battery carried by people inside a vehicle or building. It can be operated by supplying.

On the other hand, the supply means may be configured to include a heating agent.

The structure of the heating agent is a known technique, as in Korean Patent Publication Nos. 10-0961458 and 10-0917694, so it is not described in detail. The patent document is a heat generating agent used for the purpose of heating food, but in the present invention, there is a technical significance that it functions as a window breaking device using the heat generating agent. The heating agent as described above is provided to prevent non-operation of the supply means and operating means due to malfunction of the electric system in the event of vehicle impact and flooding, and can automatically destroy the windshield when the vehicle is flooded even if the electric system is not operating. There is an effect. It may be possible to operate as an electric device like other supply means, but in the case of an alternative supply means in a situation where the electric device is unavailable, it is necessary to heat it by acting a heating agent through the user's physical actuation such as a safety pin. .

As another example of the heating agent, an alkali metal may be used to heat the heating unit 4 through heat generated when water contacts the alkali metal. If the flow rate of water to the alkali metal is excessive, the amount of water in contact with the alkali metal needs to be controlled because the amount of water increases compared to the calorific value, so a structure that controls the amount of water in contact with the alkali metal is required. Through this, a person skilled in the art will be able to easily configure within the scope of the technical idea of the present invention. In order to prevent oxidation reactions of highly reactive alkali metals in the air, it will be necessary to keep them in a closed container in normal times, and in an emergency, release the sealing of the sealed container through removal of a safety pin, and expose to air/water to react. The contact surface area can be increased by providing an alkali metal in a powder form to accelerate the reaction between the alkali metal and water. In addition, it is possible to have a separate water tank and water injection means to break the glass by contacting water with alkali metals when the user operates.

The shape of the operation means is not particularly limited, such as a switch type, a safety pin type, a button type, a lever type, a control type through a display, etc., and electric energy is supplied from the supply means to the heating unit 4 by operating the operation means. It is enough.

In addition, the operation means may be provided to be spaced apart from the window by a predetermined distance, or may be provided on one side of the surface of the window. It would be possible to attach a warning phrase and add components such as safety pins to prevent the user from operating incorrectly.

In public transportation or large-sized transportation, the operating means can be used by the driver's manipulation, and the present invention may be provided in plural in each window, so it is possible for the driver to select and crush only the necessary places according to the situation.

In addition, the fixing part 3 is composed of a shape memory alloy, the matrix of the shape memory alloy is formed to have a predetermined shape at a transformation temperature, and as shown in Figs. 2 and 4, the spring unit 2 is It can be manufactured by deforming the shape of the shape memory alloy at a temperature lower than the transformation temperature by a predetermined value so that it can be fixed in a compressed state.

In more detail, since the technical idea of the present invention is not limited to the type of alloy metal, it may be made of nickel-based (Ni), copper-based (Cu), and iron-based (Fe).

Copper-based and iron-based are cheaper than nickel-based, but shape repeatability and strength are relatively too weak, so it may be preferable to fabricate nickel-based.

Therefore, the shape memory alloy according to the embodiment of the present invention was alloyed with the same ratio of titanium and nickel. The identity of the ratio of titanium and nickel may differ within a generally accepted error range. For example, the ratio of titanium and nickel may be about 6 to 4 to 4 to 6.

The shape memory alloy is subjected to shape memory heat treatment to memorize its shape at high temperature (hair shape), and if it is transformed at low temperature (martensite phase) and heated to a certain temperature (transformation temperature) or higher, it goes through the reverse transformation process. Since it is a metal that is restored to a memorized shape (mother shape), a heat treatment process is required.

Therefore, the shape of the shape memory alloy to prevent interference in the fixed part 3 and the spring part 2 is memorized so that the spring part 2 can be restored to its original length in a compressed state, and relatively low temperature (transformation At a temperature lower than the temperature), a process of applying shape deformation is required so that the fixing part 3 can fix the spring part 3 in a compressed form.

Specific values of the temperature and form as described above are a range that can be selected by a person skilled in the art through the detailed description of the present invention, and thus will not be separately described.

In another embodiment, the fixing part 3 is made of a thermoplastic plastic, and is formed to have a predetermined shape as shown in FIGS. 2 and 4 so that the spring part 2 can be fixed in a compressed state, and the When receiving heat by the heating unit 4, the material becomes soft and at the same time loses the fixing force for the spring unit 2, the spring unit 2 can apply an elastic force to the crushing unit 1.

In another embodiment, the fixing part 3 includes a thermoplastic adhesive, and maintains a predetermined shape as shown in FIGS. 2 and 4 so that the spring part 2 can be fixed in a compressed state by the adhesive. And, when the adhesive is heated by the heating unit 4, the shape of the fixing unit 3 is deformed, thereby losing the fixing force for the spring unit 2, so that the spring unit 2 becomes the crushing unit 1 Elastic force can be applied to

Hot melt, vinyl, acrylic, synthetic rubber, etc. may be applied as the thermoplastic adhesive.

Looking at the case where the fixing part 3 as described above is used in the summer or in an area with a high average temperature, fire alarm malfunctions in the summer frequently occur, so the shape of the fixing part 3 is transmitted from the outside so that the shape of the fixing part 3 can be deformed at an appropriate temperature. Insulation will be needed to block the heat from being generated.

In the case of using a shape memory alloy as the fixing part 3, it is also necessary to process it to have an appropriate transformation temperature in order to prevent malfunction due to temperature or solar heat in summer.

Accordingly, the transformation temperature can be processed into a shape memory alloy at a specific temperature within the range of 70 to 120 degrees.

Indoor temperature Dashboard temperature Rear seat temperature Rear panel temperature Black car 52 82.4 50.9 62.1 White car 47 63.8 44.5 51

Table 1 is a measurement of the summer temperature of a black car and a white car (unit: ℃). In addition, when the car is parked outdoors for a long time in summer, the temperature inside the vehicle rises to 100℃.

The temperature range as described above has critical significance in that it can destroy a window with an appropriate energy supply while preventing malfunction due to surrounding heat. When an appropriate heat insulator is provided in the glass crushing device, since it shows a temperature change pattern different from that of the exposed part (dashboard) as described above, it will be sufficient to prevent malfunction even if it is set to 70 degrees or more.

As can be seen from the vehicle temperature data in the summer above, the possibility of destruction of the windshield due to malfunction below the above temperature significantly increases, and above the temperature, energy efficiency will be greatly reduced due to excessive energy required to supply the destruction of the windshield. . The maximum temperature of 120 degrees can be applied when the summer temperature rises more than 100 degrees due to inevitable design changes. The temperature range may be adjusted by a person skilled in the art according to the climatic conditions in which the present invention is used, within the scope of the technical idea of the present invention.

For example, in countries where low temperatures persist throughout the year, it may be possible to set a temperature of 40 to 50 degrees Celsius, and in countries where high temperatures persist throughout the year, the maximum temperature is set within the material limits of the fixed part (3) through experiments. In, it would be possible to set it higher.

Minimizing (point contact) the bonding area between the vehicle and the glass shredding device is one of the ways to minimize heat conduction from the vehicle.

As shown in the above heat conduction equation, since heat transfer (Q) in conduction is proportional to the contact area (A), minimization of heat conduction from the vehicle can be adjusted by changing the shape of the glass crushing device. In addition, since the k value is an inherent property of the material, it may be possible to select a case in direct contact with the vehicle as a material having a low thermal conductivity.

Shreds: 1
Spring part: 2
Fixed part: 3
Heating part: 4

Claims (5)

In the glass crushing device that crushes the window by applying force to the crushing part while the compression spring is restored to its original state:
A crushing unit having a predetermined hardness so as to crush the window pane;
A spring portion applying an elastic force to the crushing portion;
A fixing part provided outside the spring part and fixing the spring part in a compressed state; And
And a heating unit provided outside the fixing unit and generating heat,
A glass crushing device, characterized in that the fixing part is changed into a predetermined shape by the heating part, so that the fixing force on the spring part is released and the spring part is operated. The method of claim 1,
The glass crushing device, characterized in that the heating unit is a heating element heated by electric energy. The method of claim 2,
The fixing part is composed of a shape memory alloy,
The matrix of the shape memory alloy is formed to have a predetermined shape at the transformation temperature, and the shape of the shape memory alloy is modified at a temperature lower than the transformation temperature by a predetermined value so that the spring part can be fixed in a compressed state. Glass crushing device, characterized in that the. The method of claim 2,
The fixing part is composed of a thermoplastic plastic,
A glass crushing device, characterized in that the spring part is formed to have a predetermined shape so that it can be fixed in a compressed state, and when receiving heat by the heating part, the material becomes soft and at the same time loses a fixing force to the spring part. The method of claim 2,
The fixing part comprises a thermoplastic adhesive,
It maintains a predetermined shape so that the spring part can be fixed in a compressed state by the adhesive, and the shape of the fixing part is deformed when the adhesive is heated by the heating part, thereby losing the fixing force to the spring part. Glass crushing device.

Images