A breakable window for a vehicle headrest

Abstract

The utility model provides a window -breaking car headrest, relates to car headrest technical field, include: headrest body, window -breaking mechanism can be separatedly set on the headrest body, the window -breaking mechanism includes installation pipe, gland, striker, second elastic member and third elastic member, the single side penetration opening of installation pipe, the gland is connected in the installation pipe and extends to its opening end outside, the striker is slidably arranged in the installation pipe, second elastic member is arranged between the installation pipe and the striker, the utility model has the advantages that: through the window -breaking mechanism is separablely integrated in the accommodating box of headrest body back side, and adopts the gravity self -locking type stop lock structure that is constituted by the lock piece, the counterweight and first elastic member, realizes the emergency state without disassembling headrest to make the movable bin automatic pop -out to use through the lock piece to stir, has solved the complex operation difficult problem that traditional integrated window -breaking headrest needs to pull out headrest support rod.

Description

Technical Field

[0001] This utility model relates to the field of automotive headrest technology, and in particular to a car headrest with a breakable window. Background Technology

[0002] Currently, emergency escape technologies in the field of automotive passive safety are gradually developing towards integration, with the combination of window-breaking functionality and seat headrests becoming a common design solution. Existing technologies typically employ two methods: one is to process the end of the headrest's metal support rod into a sharp window-breaking tip, allowing it to be used as a window-breaking hammer in an emergency; the other is to conceal a launchable or detachable hammer structure within the headrest, providing a gripping and force-applying point through the headrest itself. These designs aim to fully utilize existing components within the vehicle, allowing the headrest to retain its original comfort and support functions while also serving as an emergency window-breaking tool, enabling occupants to quickly access escape tools in the event of a vehicle accident.

[0003] However, the aforementioned integrated window-breaking headrests have significant limitations in actual emergency scenarios. Firstly, they must be completely removed from the seat back before use, a process that typically requires pressing the adjustment latch and applying pulling force. This significantly increases the difficulty of operation in special circumstances such as vehicle deformation, electrical failure, or when occupants have limited mobility. Secondly, the window-breaking action relies on swinging the headrest or support rod for accelerated striking. When the vehicle is deformed, resulting in insufficient interior space, it is difficult to provide sufficient swing stroke, leading to a lack of effective impact kinetic energy, thus affecting the success rate of breaking the window and even delaying precious escape opportunities. Therefore, a window-breaking car headrest is proposed to address this issue. Utility Model Content

[0004] In view of this, embodiments of the present invention provide a car headrest with a breakable window to solve the technical problem of the limitations of existing integrated breakable window headrests.

[0005] An embodiment of this utility model provides a car headrest with a breakable window, comprising: headrest body; The window-breaking mechanism is detachably mounted on the headrest body. The window-breaking mechanism includes a mounting tube, a pressure cap, a striking pin, a second elastic element, and a third elastic element. The mounting tube has a through opening on one side. The pressure cap is slidably connected to the mounting tube and extends to the outside of its open end. The striking pin is slidably mounted inside the mounting tube. The second elastic element is disposed between the mounting tube and the striking pin. The second elastic element compresses and accumulates elastic force when the striking pin is squeezed. The third elastic element is disposed between the pressure cap and the mounting tube. The third elastic element compresses and accumulates elastic force when the pressure cap is squeezed, so that the pressure cap can be reset. The firing pin is provided with a mounting plug on its exterior. The firing pin is inclined to the axis of the mounting tube. The mounting plug abuts against the transition between the inner top wall of the mounting tube and the pressure cap under the elastic force of the second elastic element. The inner wall of the mounting tube is provided with a slope. The pressure cap can squeeze the mounting plug, causing it to slide away from the pressure cap along the slope. The pressure cap has a through hole in the middle for the firing pin to pop out. When the mounting plug is disengaged from the pressure cap, it can pop out from the through hole. A receiving box is located on the other side of the support surface of the headrest body. A movable compartment is slidably installed inside the receiving box, and the window breaking mechanism is housed in the movable compartment. And a locking structure is provided on the receiving box to restrict the relative movement of the movable compartment and the receiving box. The locking structure includes a locking plate and a counterweight movably disposed on the receiving box near the upper edge of the movable compartment. The counterweight is disposed on the locking plate, so that the locking plate hangs down naturally to prevent the movable compartment from falling out of the receiving box. The lower end of the locking plate is inclined, and the movable compartment can squeeze the inclined surface of the locking plate to lift the locking plate. A first elastic element is provided on the inner wall of the receiving box, and the first elastic element pushes the movable compartment to slide relative to the receiving box.

[0006] Furthermore, the upper part of the cap is configured as an abutment part, the lower part of the cap extends toward the inner cavity of the mounting tube as an extension part, the end of the mounting plug abuts against the extension part, and one end of the third elastic member abuts against the extension part to push the cap to slide and reset.

[0007] Furthermore, the lower edge of the slope is lower than the abutting part, and when the mounting plug slides along the slope to a position lower than the abutting part, it can disengage from the abutting state with the abutting part; The mounting plug is frustum-shaped, and the smaller side of the mounting plug abuts against the abutting part, making the side of the mounting plug arc-shaped, which makes it easier to detach from the abutting part.

[0008] Furthermore, the distance between the outer periphery of the pinhole and the inner wall of the pressure cap is less than the radius of the mounting plug, so that after the mounting plug is disengaged from the abutting state of the abutting part, the striking pin is aligned with the pinhole.

[0009] Furthermore, a guide is provided inside the mounting tube, and the firing pin is slidably connected to the guide and inclined toward the abutment portion.

[0010] Furthermore, an end cap is provided at the end of the firing pin facing into the mounting tube, the end cap preventing the firing pin from dislodging from the guide member.

[0011] Furthermore, the outer side of the receiving box is provided with two guide blocks, and each of the two guide blocks has a sliding groove extending through it on both sides. The upper part of the locking piece is provided with a sliding plate, which is slidably connected to the two sliding grooves. The sliding plate is connected to the locking piece in a T-shape to guide the movement of the locking piece.

[0012] Furthermore, the width of the locking piece does not exceed the distance between the two guide blocks, and the inclined surface of the locking piece does not extend beyond the lower part of the guide block.

[0013] Furthermore, the active compartment is provided with a receiving slot for the window-breaking mechanism, which can be embedded into the receiving slot so that the window-breaking mechanism can be stored in the receiving box.

[0014] The beneficial effects of the technical solution provided by the embodiments of this utility model are as follows: The car headrest with a breakable window of this utility model integrates the window breaking mechanism detachably into the receiving box on the back of the headrest body, and adopts a gravity self-locking anti-locking structure composed of a locking plate, a counterweight, and a first elastic element. In an emergency, the movable compartment can be automatically popped out and retrieved by moving the locking plate without disassembling the headrest. This solves the complicated operation problem of traditional integrated window-breaking headrests that require pulling out the headrest support rod. At the same time, the window breaking mechanism uses an ejection energy storage structure composed of an inclined strike pin, a second elastic element, a third elastic element, and a wedge-shaped mounting plug. By pressing the cover, the strike pin is triggered to pop out and break the window instantly. This solves the defect of the prior art that relies on swinging the headrest to accelerate the impact, which is limited by the small space inside the car and results in insufficient kinetic energy for breaking the window. This modular design not only maintains the original comfort and support function of the headrest, but also gives it efficient emergency escape capability, which greatly improves the practicality and reliability of the vehicle's passive safety system. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of the car headrest with a breakable window according to this utility model; Figure 2 This is an exploded structural diagram of the car headrest with a breakable window according to this utility model. Figure 3 This utility model is a car headrest with a breakable window. Figure 1 Enlarged view of the structure at point A in the middle; Figure 4 This is a longitudinal cross-sectional view of the window-breaking mechanism of the car headrest with a breakable window according to this utility model.

[0016] In the diagram: 1. Headrest body; 2. Receiving box; 3. Movable compartment; 4. Receiving groove; 5. Mounting tube; 51. Slope; 6. First elastic element; 7. Guide block; 8. Slide groove; 9. Slide plate; 10. Locking plate; 11. Counterweight block; 12. Pressure cover; 121. Abutting part; 122. Extension part; 13. Guide element; 14. Impact pin; 15. End cap; 16. Mounting plug; 17. Second elastic element; 18. Pinhole; 19. Third elastic element. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be further described below with reference to the accompanying drawings. The following description presents a preferred embodiment of several possible embodiments of this utility model, intended to provide a basic understanding of the utility model, but not intended to identify the key or decisive elements of the utility model or to limit the scope of protection sought.

[0018] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0019] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0020] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures. Also, it should be understood that, for ease of description, the dimensions of the various parts shown in the figures are not drawn to actual scale.

[0021] In the description of this utility model, it should be noted that the circuits, electronic components and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated. The content protected by this utility model does not involve any improvement to the internal structure and method.

[0022] It should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Please refer to Figures 1 to 3This utility model provides a car headrest with a breakable window, including a headrest body 1, a housing 2, a movable compartment 3, and a window-breaking mechanism. The headrest body 1 adopts the polyurethane foam molding process of conventional car seat headrests and is covered with leather or fabric.

[0024] Unlike conventional headrests, the back of the headrest body 1 (i.e., the surface in contact with the occupant's head) is integrally formed or bolted with a rigid plastic housing 2. The housing 2 has a rectangular cavity structure with a side opening, and its opening direction is close to the inside of the carriage so that its internal structure has sufficient space to extend.

[0025] In this embodiment, the open ends of the movable compartment 3 and the receiving box 2 form a sliding pair. The clearance of this sliding fit is controlled at 0.1-0.3mm to ensure that the movable compartment 3 can slide out smoothly relative to the receiving box 2 without causing abnormal noise due to vehicle vibration. The movable compartment 3 is preferably made of the same ABS plastic material as the receiving box 2, and its outer contour dimension is slightly smaller than the inner cavity of the receiving box 2, with a 0.5-1mm clearance on one side.

[0026] More specifically, in this embodiment, the locking structure is the core component that ensures the movable compartment 3 is securely locked under normal conditions and reliably released in an emergency. It includes a locking plate 10, a counterweight 11, a guide block 7, a sliding plate 9, and a first elastic element 6.

[0027] In terms of specific structure, a pair of guide blocks 7 are arranged vertically at one end of the opening of the receiving box 2. The guide blocks 7 are fixed to the outer wall of the receiving box 2 by ultrasonic welding or bolts, and are symmetrically distributed on the front and rear sides of the rectangular groove. Each guide block 7 is elongated and has a rectangular groove 8 opened horizontally. The sliding plate 9 is a metal sheet, with its left and right ends extending through the two grooves 8 to form a vertical sliding connection with clearance fit.

[0028] The slide plate 9 and the locking plate 10 are formed into a T-shaped structure by riveting or integral stamping. The locking plate 10 naturally hangs down and extends into the opening of the receiving box 2 under the action of gravity, and one side of the locking plate 10 is attached to the opening surface of the receiving box 2 to prevent the movable compartment 3 from sliding out.

[0029] It is worth noting that the counterweight 11 is preferably a metal block, such as a steel block, with a mass of 30-40g, and is fixed to the part of the locking plate 10 located outside the receiving box 2 by adhesive bonding. The gravitational torque generated by the counterweight 11 keeps the locking plate 10 hanging vertically in its natural state, and its lower end blocks the ejection path of the movable compartment 3.

[0030] In addition, the lower end of the locking plate 10 is machined with a 45°-60° slope, which faces the outer side of the movable chamber 3. Thus, when the movable chamber 3 is pushed into the housing box 2, it can contact the slope of the locking plate 10 through the movable chamber 3, squeeze and make the locking plate 10 slide through the slide plate 9 and the two slide grooves 8 and then be lifted vertically, so that the movable chamber 3 can slide freely into the housing box 2.

[0031] In an optional embodiment, the first elastic element 6 is preferably a helical compression spring. One end of the spring is fixed to the center of the inner rear wall of the receiving box 2 by adhesive bonding or hooks, and the other end abuts against the rear end face of the movable chamber 3. It is in a pre-compressed state to ensure that the movable chamber 3 can be pushed against the locking piece 10 when the first elastic element 6 is compressed.

[0032] Please refer to Figure 4 In this embodiment, the window breaking mechanism adopts the principle of inclined elastic potential energy accumulation and instantaneous release. Its components include mounting tube 5, pressure cap 12, striking pin 14, second elastic element 17, third elastic element 19 and mounting plug 16.

[0033] The mounting tube 5 is a cylindrical shell made of metal such as aluminum alloy or high-strength engineering plastic, with one end being closed and the other end being a single-sided through opening. The cap 12 is a stepped tube structure, consisting of an external mating part 121 and an extension part 122 extending into the inner cavity of the mounting tube 5.

[0034] It should be noted that the gland 12 also adopts a tube structure with one end open. At the same time, the open end of the gland 12 should have a flange that slides with the inner wall of the mounting tube 5. By sliding between the flange and the inner wall of the mounting tube 5, the gland 12 and the mounting tube 5 can be prevented from disengaging from the sliding fit. It can also prevent the gland 12 from rotating relative to the mounting tube 5, which would cause the mating part 121 and the extension part 122 to be out of position.

[0035] In this embodiment, the tip of the striking pin 14 has a 60° conical angle. The striking pin 14 is not coaxial with the mounting tube 5, but is arranged at an angle of 10°-15° relative to the tube axis. This angle of inclination ensures that the mounting plug 16 can stably abut against the slope 51.

[0036] Furthermore, the guide member 13 is a copper alloy bushing press-fitted into the middle of the inner cavity of the mounting tube 5 via an interference fit. Its inner hole is also inclined, matching the inclination angle of the firing pin 14, providing sliding guidance for the firing pin 14. At the same time, the inner hole needs to be configured with sufficient clearance so that after the firing pin 14 is aligned with the mounting tube 5 at its inclination angle, it can still slide naturally without jamming. The tail end of the firing pin 14 is riveted with an end cap 15, the diameter of which is larger than the inner hole diameter of the guide member 13, to prevent the firing pin 14 from dislodging under the action of the second elastic member 17.

[0037] It should be noted that the second elastic element 17 is a helical compression spring, with one end abutting against the surface of the guide 13 and the other end abutting against the mounting plug 16. Under normal conditions, the second elastic element 17 is in a moderately compressed state, and as the mounting plug 16 is squeezed, it gradually compresses.

[0038] Furthermore, the mounting plug 16 is a frustum-shaped plug, with its larger diameter end facing the middle of the firing pin 14 and its smaller diameter end facing the pressure cap 12. The cone angle of the mounting plug 16 is 30°-45°, and the slope 51 is an inclined surface formed on the inner top wall of the mounting tube 5, the inclination direction of which matches the cone surface of the mounting plug 16, and the lower edge of the slope 51 is 2-3 mm lower than the lower surface of the abutment part 121. Thus, when the mounting plug 16 is pressed against the slope 51 by the abutment part 121, the mounting plug 16 slides along the slope 51, causing the firing pin 14 to gradually approach a horizontal state until the mounting plug 16 is lower than the height of the lower end face of the abutment part 121. At this point, the mounting plug 16 can no longer abut against the abutment part 121, and is thus released under the elastic force of the second elastic member 17.

[0039] In this embodiment, the third elastic element 19 is a helical compression spring. The spring is sleeved on the outer periphery of the extension 122, with one end abutting the inner side of the abutting part 121 and the other end abutting the inner wall of the mounting tube 5. It is in a slightly pre-compressed state to ensure that the pressure cap 12 can automatically reset after being pressed.

[0040] Please refer to Figure 2 In this embodiment, the interior of the movable compartment 3 is integrally formed with a receiving groove 4 that matches the outer contour of the window-breaking mechanism. This groove is a semi-circular recess with a depth slightly greater than the outer radius of the mounting tube 5. The window-breaking mechanism is embedded into the receiving groove 4 through an interference fit, ensuring that the window-breaking mechanism will not shake or generate noise under normal conditions.

[0041] The pressure cap 12 has a through hole 18 for ejecting the firing pin 14. The distance between the outer periphery of the firing pin 18 and the inner wall of the pressure cap 12 is less than the radius of the mounting plug 16. After the mounting plug 16 is disengaged from the abutment part 121, the firing pin 14 is aligned with the firing pin 14. That is, when the mounting plug 16 slides along the slope 51 to a position lower than the lower part of the abutment part 121, the firing pin 14 and the firing pin 18 are coaxial, and the firing pin 18 has a sufficient distance to allow the firing pin 14 to be lifted, so that the firing pin 14 can be naturally ejected from the firing pin 14.

[0042] In its normal storage state, the tip of the firing pin 14 is aligned with the abutment part 121 but is hidden inside the pressure cover 12, and the pin hole 18 is not exposed.

[0043] Normal (not in use) state: The first elastic element 6 is compressed, and the movable compartment 3 is completely stored in the receiving box 2; the locking plate 10 hangs down under the gravity of the counterweight 11, preventing the movable compartment 3 from popping out; the second elastic element 17 is compressed, and the mounting plug 16 is wedge-shaped locked; the third elastic element 19 is slightly compressed, and the pressure cover 12 is in the initial position of extension.

[0044] Emergency activation steps: Unlocking and retrieving: The occupant moves the counterweight 11 or the locking plate 10 upwards by hand to overcome the gravitational torque and move the locking plate 10 upwards along the slide groove 8. Under the elastic force of the first elastic element 6, the movable compartment 3 automatically pops out part of itself, and the occupant can easily remove the entire movable compartment 3. This process does not require disassembling the headrest.

[0045] Window breaking procedure: The occupant holds the mounting tube 5 with one hand, aligns the pressure cap 12 with the weakest point (four corners) of the window glass, and presses down firmly. The pressure cap 12 retracts into the mounting tube 5, and the end face of the abutment 121 directly presses against the mounting plug 16. Combined with the guiding effect of the slope 51, this causes the mounting plug 16 to generate a radial force. When the pressing causes the mounting plug 16 to slide below the lower end of the abutment 121 along the slope 51, the mounting plug 16 loses the pressure of the abutment 121 and instantly slips off. The elastic energy of the second elastic element 17 is released, driving the striker 14 to accelerate and propel it towards the pinhole 18, impacting the glass surface. Because the striker 14 impacts almost vertically, the window breaking effect is ensured.

[0046] Reset and regeneration: After the window is broken, the pressure cap 12 is released, and the third elastic element 19 pushes the pressure cap 12 to reset; the striking pin 14 automatically returns to the mounting tube 5, so that the mounting plug 16 is raised again and abuts against the abutment part 121 and the inner wall of the mounting tube 5, thus realizing the mechanism reset for secondary use.

[0047] In this document, the directional terms such as front, back, top, and bottom are defined based on the location of the components in the accompanying drawings and their relative positions to each other, solely for the purpose of clarity and convenience in expressing the technical solution. It should be understood that these are relative concepts and can vary depending on the method of use and placement; the use of directional terms should not limit the scope of protection claimed in this application.

[0048] Where there is no conflict, the above embodiments and features described herein can be combined with each other.

[0049] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A car headrest with a breakable window, characterized in that, include: Headrest body (1); The window-breaking mechanism is detachably mounted on the headrest body (1). The window-breaking mechanism includes a mounting tube (5), a pressure cap (12), a striking pin (14), a second elastic element (17), and a third elastic element (19). The mounting tube (5) has a through opening on one side. The pressure cap (12) is slidably connected to the mounting tube (5) and extends to the outside of its opening end. The striking pin (14) is slidably mounted inside the mounting tube (5). The second elastic element (17) is mounted between the mounting tube (5) and the striking pin (14). The second elastic element (17) compresses and accumulates elastic force when the striking pin (14) is squeezed. The third elastic element (19) is mounted between the pressure cap (12) and the mounting tube (5). The third elastic element (19) compresses and accumulates elastic force when the pressure cap (12) is squeezed, so that the pressure cap (12) can be reset. The firing pin (14) is provided with a mounting plug (16) on its outside. The firing pin (14) is inclined to the axis of the mounting tube (5). The mounting plug (16) is pushed by the elastic force of the second elastic member (17) and abuts against the transition between the inner top wall of the mounting tube (5) and the pressure cap (12). The inner wall of the mounting tube (5) is provided with a slope (51). The pressure cap (12) can squeeze the mounting plug (16) so that it slides away from the pressure cap (12) along the slope (51). The pressure cap (12) has a through hole (18) for the firing pin (14) to pop out. When the mounting plug (16) is separated from the pressure cap (12), it can pop out from the hole (18). A receiving box (2) is provided on the other side of the support surface of the headrest body (1). A movable compartment (3) is slidably installed inside the receiving box (2), and the window breaking mechanism is housed in the movable compartment (3). And a locking structure is provided on the receiving box (2) to restrict the relative movement of the movable chamber (3) and the receiving box (2). The locking structure includes a locking piece (10) and a counterweight (11) movably disposed on the receiving box (2) near the upper edge of the movable chamber (3). The counterweight (11) is disposed on the locking piece (10) so that the locking piece (10) hangs down naturally to prevent the movable chamber (3) from falling out of the receiving box (2). The lower end of the locking piece (10) is inclined. The movable chamber (3) can squeeze the inclined surface of the locking piece (10) to lift the locking piece (10). A first elastic element (6) is provided on the inner wall of the receiving box (2). The first elastic element (6) pushes the movable chamber (3) to slide relative to the receiving box (2).

2. The car headrest with a breakable window as described in claim 1, characterized in that: The upper part of the pressure cap (12) is configured as an abutment part (121), and the lower part of the pressure cap (12) extends toward the inner cavity of the mounting tube (5) with an extension part (122). The end of the mounting plug (16) abuts against the extension part (122), and one end of the third elastic member (19) abuts against the extension part (122) to push the pressure cap (12) to slide and reset.

3. The car headrest with a breakable window as described in claim 2, characterized in that: The lower edge of the slope (51) is lower than the abutment (121). When the mounting plug (16) slides along the slope (51) to a position lower than the abutment (121), it can disengage from the abutment state with the abutment (121). The mounting plug (16) is frustum-shaped, and the smaller surface of the mounting plug (16) abuts against the abutting part (121), making the side surface of the mounting plug (16) arc-shaped, which makes it easier to detach from the abutting part (121).

4. The car headrest with a breakable window as described in claim 3, characterized in that: The distance between the outer periphery of the pinhole (18) and the inner wall of the pressure cap (12) is less than the radius of the mounting plug (16). After the mounting plug (16) is disengaged from the abutting part (121), the striking pin (14) is aligned with the pinhole (18).

5. The car headrest with a breakable window as described in claim 2, characterized in that: The mounting tube (5) is provided with a guide (13) inside, and the firing pin (14) is slidably connected to the guide (13) and inclined toward the abutment (121).

6. The car headrest with a breakable window as described in claim 5, characterized in that: The firing pin (14) has an end cap (15) at one end facing into the mounting tube (5), and the end cap (15) prevents the firing pin (14) from coming out of the guide (13).

7. The car headrest with a breakable window as described in claim 1, characterized in that: The outer side of the receiving box (2) is provided with two guide blocks (7), and the two guide blocks (7) are provided with sliding grooves (8) on both sides. The upper part of the locking piece (10) is provided with a sliding plate (9), which is slidably connected to the two sliding grooves (8). The sliding plate (9) is connected to the locking piece (10) in a T-shape to guide the movement of the locking piece (10).

8. The car headrest with a breakable window as described in claim 7, characterized in that: The width of the locking piece (10) does not exceed the distance between the two guide blocks (7), and the inclined surface of the locking piece (10) does not extend beyond the lower part of the guide block (7).

9. The car headrest with a breakable window as described in claim 1, characterized in that: The active compartment (3) is provided with a receiving slot (4) for the window breaking mechanism to be accommodated. The window breaking mechanism can be embedded into the receiving slot (4) so ​​that the window breaking mechanism can be stored in the receiving box (2).

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